JPH11319208A - Gaming machine - Google Patents

Abstract

(57) [Summary] [Problem] Difficulty of winning changes variously due to complicated opening and closing operation of the blade, the game is interesting, the gambling of the player can be sufficiently satisfied, and the expectation for winning is filled with expectation Provide gaming machines with high customer attraction. A game control device (30) opens and closes a movable blade (21) above a movable winning device (20) a predetermined number of times when a ball wins a specific winning opening (12). The movable blade 22 is opened and closed a predetermined number of times, and when the ball wins in the lower special winning opening 24b during that time, the upper and lower movable blades 21 and 22 are alternately opened and closed a predetermined number of times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine in which a ball is hit on a game board, and when the ball wins a specific winning opening, a gaming state which is advantageous to a player is provided.

[0002]

2. Description of the Related Art Conventionally, in a pachinko machine as a game machine,
When a ball wins in a specific winning opening, a pair of blades in a central role is opened to the left and right, and a model (a so-called feather) that makes it easy for the ball to win inside the central role is known. A specific hole called a V zone is provided inside the central accessory.

Generally, when a ball enters the V zone, a big hit occurs and the opening and closing of the blade are repeated up to a predetermined number of times. Furthermore,
When the ball enters the V zone again during the opening / closing operation of the blades, the opening / closing operation of the blades a predetermined number of times is set so as to be repeated repeatedly with an upper limit of a certain number of rounds.

[0004] In the central role, a pair of blades may be arranged so as to be vertically arranged. In such a central role, in the event of a big hit in which a ball wins a specific winning opening, the upper and lower positions are arranged. The blades were controlled to open and close synchronously. The upper and lower blades are normally closed, but when opened synchronously, guide the ball to a winning area including the V zone therein.

[0005]

However, in the conventional pachinko machine described above, even if a big hit occurs, only a simple operation of opening and closing a pair of blades of the central role is seen, and the opening and closing of such blades is performed. The movement was almost standardized, and the change of the winning form of the game ball was also poor. For this reason, the lack of fun as a game has occurred, and there has been a problem that the player is getting bored.

Also, in a pachinko machine having a central role with vertically arranged blades, the upper and lower blades open synchronously, despite the fact that there are two upper and lower blades. In many cases, the ball falling from above the game board could not be picked up well by the lower blade.

That is, when the upper blade is opened, the ball cannot be picked up by the lower blade, and the lower blade may not have any effect on the substantial advantage in the game. In such a case, there is a possibility that the interest of the game may be spoiled, for example, such that the player's feeling is offended.

The present invention has been made in view of the above-mentioned problems of the prior art, and the difficulty of winning changes variously due to the more complicated opening / closing operation of the blades, which makes the game interesting and interesting. It is an object of the present invention to provide a gaming machine capable of sufficiently satisfying a player's ambition and having a high level of customer attraction with a high expectation for winning.

[0009]

The gist of the present invention to achieve the above-mentioned object lies in the following items. [1] In a game in which a ball is hit on the game board surface (11), when the ball wins in a specific winning opening (12), the gaming machine (10) which is in a gaming state advantageous to the player has an advantage in winning the ball. A variable moving prize device (20);
0), wherein the movable winning device (20) comprises a movable blade which can be opened and closed between a normal closed state where it is difficult to receive a ball and a temporary open state where it is easy to receive a ball. (21, 22) are separately arranged in the upper and lower parts, and internal prize areas (23a, 23b) in which the balls guided by the upper and lower movable blades (21, 22) enter are provided.
a, 23b), an upper special winning opening (24a) into which a ball guided by the upper movable blade (21) can enter, and a lower special winning opening (24) into which a ball guided by the lower movable blade (22) can enter. 2
4b) and the game control device (3
0) opens and closes the upper movable wing (21) a predetermined number of times when a ball wins in the specific winning opening (12), and when the ball wins in the upper special winning opening (24a) in the meantime, the lower movable winning opening (24a) opens. The movable blades (22) are opened and closed a predetermined number of times, and if a ball wins in the lower special winning opening (24b) during that time, the upper and lower movable blades (21, 22) are alternately opened and closed a predetermined number of times. Gaming machine (10).

[2] The game control device (30) is configured such that the upper special winning opening (24a) and the lower special winning opening are provided while the upper and lower movable blades (21, 22) are alternately opened and closed a predetermined number of times. When the ball wins (24b), after alternately opening and closing the upper and lower movable blades (21, 22) a predetermined number of times in the middle, the upper and lower movable blades (21, 22) are newly renewed.
The gaming machine (1) according to [1], wherein the predetermined number of alternate opening / closing operations is repeatedly performed with a certain number of rounds as a limit.
0).

[3] The game control device (30) determines that a ball wins in the upper special winning opening (24a) while the upper and lower movable blades (21, 22) are alternately opened and closed a predetermined number of times. While opening and closing only the upper movable blade (21),
The gaming machine (10) according to [1], wherein when the ball wins the lower special winning opening (24b), only the lower movable blade (22) is opened and closed.

[4] The upper and lower movable blades (21, 22)
The opening and closing of the upper and lower movable blades (21) is set as a series of operations for opening and closing the upper movable blade (21) and then opening and closing the lower movable blade (22) after a predetermined time delay [1], The gaming machine (10) according to [2] or [3].

Next, the operation based on the above solution will be described. According to the gaming machine (10) described in [1], the movable winning device (20) is controlled by the game control device (30) as follows. First, when a ball hit on the game board surface (11) wins a specific winning opening (12), the upper movable blade (21) in the movable winning device (20) opens and closes a predetermined number of times.

During the opening / closing operation of the upper movable blade (21), when the ball guided to the internal winning area (23a) wins the upper special winning opening (24a), the lower movable blade (2) is turned on.
2) opens and closes a predetermined number of times. When the ball guided to the internal winning area (23b) wins in the lower special winning opening (24b) during the opening and closing operation of the lower movable blade (22), the upper and lower movable blades (21, 22) alternate. Will be opened and closed a predetermined number of times.

According to the gaming machine (10) described in [2], the upper special winning opening (24a) and the lower special winning opening are provided while the upper and lower movable blades (21, 22) are opened and closed a predetermined number of times. When the ball wins (24b), the upper and lower movable blades (21, 22) are alternately opened and closed a predetermined number of times in the middle, and then the upper and lower movable blades (21, 22) are alternately opened and closed a predetermined number of times. Opening and closing are repeatedly performed up to a certain number of rounds. Such upper and lower movable blades (21, 22)
Is controlled by the game control device (30).

According to the gaming machine (10) described in [3], while the upper and lower movable blades (21, 22) are opened and closed a predetermined number of times, a ball is moved to the upper special winning opening (24a). When a prize is won, only the upper movable wing (21) is further opened and closed, while when a ball wins in the lower special winning opening (24b), only the lower movable wing (22) is further opened and closed.

Here, the opening and closing operations of the upper and lower movable blades (21, 22) may occur in synchronization. Such control of the opening and closing of the upper and lower movable blades (21, 22) is also executed by the game control device (30). Note that [2]
The opening / closing control described in [3] and the opening / closing control described in [3] are alternatively executed by the game control device (30).

In the alternate opening and closing of the upper and lower movable blades (21, 22), the upper movable blade (2) is first opened and closed as described in [4], and then the lower movable blade (22) is delayed by a predetermined time. It is preferable to repeat a series of operations to be opened and closed.

Then, when the lower movable blade (22) is opened, the ball is prevented from being guided to the opened lower movable blade (22) by opening and closing the upper movable blade (21). In other words, the ball spilled from the upper movable blade (21) can be received by the lower movable blade (22).

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments representing the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention. As shown in FIG. 3, the gaming machine 10 according to the present embodiment, as shown in FIG. 3, rotates the handle 17 so as to launch balls one by one on the game board surface 11 and to enjoy the winning of such hit balls. Machine.

The gaming machine 10 includes a movable winning device 20 that changes the ease of winning a ball, and a game control device 30 that controls the operation of the movable winning device 20. Such a gaming machine 10
The condition is that the movable winning device 20, which is the central role, performs a predetermined operation on condition that the ball wins the specific winning opening 12, and when a specific winning condition is satisfied, a big hit advantageous to the player occurs. It is configured as follows.

As shown in FIG. 3, the front surface of the game board surface 11 is covered with a glass door for forming a space for moving a ball between the game board surface 11 and the game board surface 11. At the outer edge of the game board surface 11, a guide rail 11 a for sending a ball hit by a rotation operation of the handle 17 to a position vertically above the game board surface 11 is provided. Game board surface 11
The movable winning device 20 is disposed as a main accessory in the center of the game.

A specific winning port 12 is provided below the movable winning device 20. In addition, in the right place of the game board surface 11, there are provided a number of obstacle nails for playing the ball in various directions and various accessories, various winning ports such as the tulip 13, and an out port 14 for a missing ball. . In addition to a handle 17, a front plate 18 for receiving pachinko balls and a spare plate 19 for receiving balls overflowing from the front plate 18 are provided at the lower front part of the gaming machine 10.

The specific winning opening 12 is generally called a starting chucker, and includes a winning detecting switch 12a (see FIG. 1) for detecting a winning of a ball. The prize detection switch 12a is connected to the game control device 30 via a signal line so as to output a specific prize signal to a game control device 30 described later when a prize ball is detected and turned on. The winning detection switch 12a may be constituted by various sensors such as an optical sensor, a proximity sensor, and a magnetic sensor.

As shown in FIG. 2, the movable winning device 20
A pair of movable blades 21 and 22 are provided above and below the base body 20a, respectively, and inside them, an internal winning area where a ball guided by the upper and lower movable blades 21 and 22 enters is provided. The internal winning area includes an upper winning opening 23a in which a ball guided to the upper movable blade 21 enters, and a lower movable blade 22.
Is divided into a lower winning port 23b in which the ball guided by the player enters.

At the center of the upper winning port 23a, there is provided an upper special winning port 24a into which a ball guided by the upper movable blade 21 can enter. Similarly, a lower special winning opening 24b into which a ball guided by the lower movable blade 22 can enter is provided at the center of the lower winning opening 23b. Winner 23
The balls are set so that the balls are less likely to win the special winning openings 24a and 24b than the entire a and 23b.

The upper and lower movable blades 21 and 22 are pivotally supported to open and close in a normal closed state where it is difficult to receive a ball and a temporary open state where it is easy to receive a ball. Here, the closed state is not limited to a case where the ball is hardly accepted, but may be a state where the ball is not accepted at all. Hereinafter, a drive mechanism of the upper and lower movable blades 21 and 22 will be described with the upper movable blade 21 as a representative.

As shown in FIG. 4, the upper (lower) movable blade 2
1 (22) is a solenoid 21a which is a driving means.
(22a) is connected to the plunger 21b (22b) via a cam mechanism. The upper (lower) movable blade 21 (2
2) is a closed state that normally rises vertically, but is set so as to swing right and left to open when the solenoid 21a (22a) is excited. The solenoids 21a and 22a are connected to a game control device 3 described later.
0, and is driven based on a command from the game control device 30.

As shown in FIG. 1, the movable winning device 20 is provided with a winning detection switch 25a for detecting and counting the balls entering the upper winning opening 23a. The winning detection switch 25a is composed of various sensors and the like, and outputs a count signal to the game control device 30 every time a winning ball is detected.

In addition, inside the upper special winning opening 24a,
A prize detection switch 26a is provided separately from the prize detection switch 25a. The winning detection switch 26a is
At the time of winning, a V winning signal is output. Similarly, a winning detection switch 25b is provided on the lower winning opening 23b side, and a winning detecting switch 26b is provided on the lower special winning opening 24b side.

As shown in FIG. 1, the game control device 30
CPU, ROM, RA for controlling the operation of the entire gaming machine 10
A microcomputer including at least M and the like.
The game control device 30 is unitized, and the game board surface 1
1 is installed in the body such as the back side. In addition, the game control device 30 is connected via a local information communication network (LAN),
It is connected to a hall management terminal (not shown) that centrally controls the operation and operation of various devices in the amusement arcade.

The CPU of the game control device 30 includes a winning determination unit 31, a first game generation unit 32, and a second game generation unit 3.
3. Third game generating means 34, and third game continuation means 3
5 are provided. CPU not shown
Includes a ROM for storing game control program data,
A RAM as a work memory, an I / O port, a clock generation circuit, and the like are connected via signal lines, and the above-described specific winning opening 12 and movable winning device 20 are also connected.

The prize judging means 31 discriminates a prize in the specific prize port 12 and a prize in the upper special prize port 24a and the lower special prize port 24b among the prizes of the balls in the various prize ports. This is a means for determining what kind of gaming state the movable winning device 20 is in when winning in the winning ports 24a and 24b.

The first game generating means 32 is means for opening and closing the upper movable blade 21 a predetermined number of times when a ball wins in the specific winning opening 12. Specifically, the first game generating means 32
Is based on the specific winning signal from the winning detecting switch 12a identified by the winning determining means 31,
A drive signal is output to one solenoid 21a by the number of times of opening and closing. Here, the number of times of opening and closing of the upper movable blade 21 may be appropriately determined, but is set to three times in the present embodiment.

The second game generating means 33 is means for opening and closing the lower movable blade 22 a predetermined number of times when a ball wins in the upper special winning opening 24a while the upper movable blade 21 is opened and closed three times. is there. The fact that a ball has entered the upper special winning opening 24a while the upper movable blade 21 is opened and closed three times is identified by the winning determining means 31. The number of times the lower movable blade 22 opens and closes is, for example, five times.

If a ball wins in the lower special winning opening 24b while the lower movable blade 22 is opened and closed five times, the third game generating means 33 will turn to the upper and lower movable blades 21 and 22.
Are alternately opened and closed a predetermined number of times. While the lower movable blade 22 is opened and closed five times, a lower special winning opening 24b is provided.
The fact that the ball has entered is identified by the winning determination means 31.

The number of times the upper and lower movable blades 21 and 22 are opened and closed is, for example, eight times. Here, the upper and lower movable blades 21,
The alternate opening and closing of 22 is set such that a series of operations in which the upper movable blade 21 opens and closes first and then the lower movable blade 22 opens and closes after a predetermined time delay is repeated.

That is, when the upper and lower movable blades 21 and 22 are alternately opened and closed, a drive signal is first output to the solenoid 21a of the upper movable blade 21 as shown in FIG. The driving signal is output to the blade 22a, and is controlled by the third game generating means 33 so that the driving signal is repeated eight times.

Here, in the example of FIG. 5, the predetermined time T, which is the time difference between opening of the upper and lower movable blades 21 and 22, is the excitation time of each of the solenoids 21a and 22a, that is, the movable blades 21 and 22.
2 coincides with the time when it is displaced to the open state. in this case,
The open state of the upper and lower movable blades 21 and 22 does not overlap, but the point is that the upper movable blade 21 is opened, and there is a time difference such that when the lower movable blade 22 is opened, the winning of the ball is not prevented. The open state of the upper and lower movable blades 21 and 22 may slightly overlap.

The third game continuation means 35, when the upper special winning opening 24a and the lower special winning opening 24b receive a ball while the upper and lower movable blades 21 and 22 are alternately opened and closed eight times, the upper and lower movable wings 21 and 22 are opened and closed. After the movable blades 21 and 22 have been alternately opened and closed eight times in the middle, the upper and lower movable blades 21 and 22 are newly added.
Is a means for repeatedly executing the eight alternate opening / closing operations with a limited number of rounds.

The upper and lower movable blades 21 and 22 are alternately opened and closed based on a command from the third game continuation unit 35, similarly to the case of the control by the third game generation unit 33, the upper movable blade 21 is first opened and closed. Next, the movable blade 2 below is delayed for a predetermined time.
2 is opened and closed.

The upper and lower movable blades 21 and 22 are alternately
The fact that the ball has won the upper special winning opening 24a and the lower special winning opening 24b during the opening and closing operations is identified by the winning determining means 31. Here, for example, the condition may be that a ball enters both the upper special winning opening 24a and the lower special winning opening 24b within a predetermined time. Also, the fixed number of rounds is
For example, in the present embodiment, it is determined to be up to ten times.

Next, the operation will be described. In FIG. 3, the player operates the handle 17 to rotate the game board surface 1.
1. Launch a ball on top and enjoy competing for a prize in each of the hits. When the ball enters the special winning opening 12 while the game is in progress,
The winning detection switch 12a outputs a specific winning signal to the winning determining means 31 of the game control device 30.

Then, a drive signal is output from the first game generating means 32 of the game control device 30 to the solenoid 21a of the movable blade 21 on the movable winning device 20. Thereby,
The opening and closing operation in which the upper movable blade 21 temporarily opens from the normal closed state to the open state is repeated only three times.

When the ball guided to the upper winning opening 23a wins in the upper special winning opening 24a during the opening / closing operation of the movable blade 21, the winning is identified by the winning determining means 31, and the second winning operation is performed. The movable blade 22 below the game generating means 33
A drive signal is output to the solenoid 22a. Thereby, the lower movable blade 22 repeatedly opens and closes five times.

Further, if the ball guided to the lower winning opening 23b wins in the lower special winning opening 24b during the opening and closing operation of the lower movable blade 22, the winning is also identified by the winning determining means 31. Then, this time, the third game generating means 3
4, the upper and lower movable blades 21 and 22 are alternately opened and closed eight times.

More specifically, as shown in FIG. 5, a drive signal is first output from the third game generating means 34 to the solenoid 21a of the upper movable blade 21, and then a predetermined time (T) later, the lower movable blade A drive signal is output to 22a, and this is repeated eight times. Thereby, the upper and lower movable blades 21,
In the alternate opening and closing of 22, the series of operations in which the upper movable blade 21 opens and closes first and then the lower movable blade 22 opens and closes after a predetermined time delay is repeated.

As described above, since the upper and lower movable blades 21 and 22 are opened with a time difference, when the lower movable blade 22 is opened, the ball is guided to the lower movable blade 22 which has been opened by opening and closing the upper movable blade 21. Will not be disturbed. Furthermore,
The ball spilled from the upper movable blade 21 can be received by the lower movable blade 22.

Further, the upper and lower movable blades 21 and
If a ball wins in the upper special winning opening 24a and the lower special winning opening 24b during the opening / closing operation 2, the winning is also identified by the winning determining means 31. Then, this time, based on a command from the third game continuation means 35, the eight opening and closing operations of the upper and lower movable blades 21 and 22 are temporarily terminated in the middle, and thereafter, eight times of the upper and lower movable blades 21 and 22 are newly performed. Is repeatedly executed up to a fixed round number of 10 times.

Therefore, the player can acquire more prize balls. If you do not meet the prize requirements described above,
The opening and closing operations of the upper and lower movable blades 21 and 22 do not continue. Further, for example, when the upper and lower movable wings 21 and 22 are opened only once, if the situation in which the ball wins in the upper special winning opening 24a and the lower special winning opening 24b is supposed to be continuous, the third case is obtained.
Under the control of the game continuation means 35, the upper and lower movable blades 21 and
The number of times 2 is repeatedly opened is 10 times in total. Here, if the number of rounds is set to, for example, five instead of ten,
The number of times the upper and lower movable blades 21 and 22 open is only five times in total.

FIG. 6 shows a second embodiment of the present invention. In the present embodiment, a game control device 30A is different from the game control device 30 of the first embodiment described above. That is, the game control device 30A is
, A fourth game generating means 36 is provided instead of the third game continuation means 35.

The fourth game generating means 36 controls the upper special winning opening 24a while the upper and lower movable blades 21 and 22 are alternately opened and closed eight times under the control of the third game generating means 34.
When the ball wins, the upper movable blade 21 is opened and closed only, and when the ball wins the lower special winning opening 24b, only the lower movable blade 22 is opened and closed.

The fact that a ball enters the upper special winning opening 24a or the lower special winning opening 24b while the upper and lower movable blades 21 and 22 are opened and closed eight times is determined by the winning determining means 31.
Is identified by The number of times that the upper movable blade 21 and the lower movable blade 22 open and close independently is, for example, 1
What is necessary is just to set as 0 times etc. suitably.

According to this embodiment, if a ball wins in the upper special winning opening 24a while the upper and lower movable blades 21 and 22 are opened and closed eight times, only the upper movable blade 21 is further moved. On the other hand, when a ball wins in the lower special winning opening 24b while opening and closing, only the lower movable blade 22 further opens and closes.

Here, the opening and closing operations of the upper and lower movable blades 21 and 22 may occur in synchronization. In such a case, the opening and closing of the upper and lower movable blades 21 and 22 may be controlled such that the upper movable blade 2 opens and closes first, and then the lower movable blade 22 opens and closes after a predetermined time delay as described above. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

Note that the gaming machine according to the present invention is not limited to the above-described embodiment, and the structure of the movable winning device,
The game process from the winning of the specific winning opening to the alternate opening and closing of the upper and lower movable blades is not limited to the above-described specific process (the number of opening and closing of the upper and lower movable blades, the number of rounds, and the like). Further, the gaming machine 10 according to the embodiment is configured as a model called a “wing”, but the movable winning device 20 which forms the basis of the present invention includes:
It may be configured as an accessory of another type of gaming machine.

[0057]

According to the gaming machine of the present invention, when a ball wins in a specific winning opening based on a command from the game control device, the movable blade on the movable winning device opens and closes a predetermined number of times, during which the upper special When the ball wins the winning opening, the lower movable blade opens and closes a predetermined number of times, and in the meantime, when the ball wins the lower special winning opening, the upper and lower movable blades alternately open and close the predetermined number of times,
Unprecedented movement of the movable blades opens and closes to change the difficulty of winning in various ways, increasing the fun of the game, satisfying the gambling of the player sufficiently, increasing the expectation for the winning and attracting customers Can be enhanced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a game control device constituting a gaming machine according to a first embodiment of the present invention.

FIG. 2 is a front view showing a game board surface of the gaming machine according to the first embodiment of the present invention.

FIG. 3 is a front view showing the gaming machine according to the first embodiment of the present invention.

FIG. 4 is an enlarged perspective view showing a main part of a movable winning device of the gaming machine according to the first embodiment of the present invention.

FIG. 5 is a time chart for explaining an opening and closing operation of a movable blade of the movable winning device of the gaming machine according to the first embodiment of the present invention.

FIG. 6 is a block diagram showing a game control device constituting a gaming machine according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Game machine 11 ... Game board surface 12 ... Specific winning opening 13 ... Tulip 14 ... Out opening 17 ... Handle 18 ... Front plate 19 ... Preparation plate 20 ... Movable winning device 20a ... Base body 21 ... Movable blade 22 ... Movable blade 23a ... Upper winning opening 23b Lower winning opening 24a Upper special winning opening 24b Lower special winning opening 30 Game control device 31 Winning determining means 32 First game generating means 33 Second game generating means 34 Third game generating Means 35: Third game continuation means 36: Fourth game generation means

Claims (4)

[Claims] 1. A game machine in which a ball is hit on a game board surface, and when a ball wins a specific winning opening, a gaming machine which is in a gaming state advantageous to a player, wherein a movable winning device in which the ease of winning the ball changes. A game control device for controlling the operation of the movable winning device, wherein the movable winning device vertically separates movable blades that can be opened and closed between a normal closed state where it is difficult to receive a ball and a temporary open state where it is easy to receive a ball. Arranged and provided with an internal winning area where the ball guided by the upper and lower movable blades enters, and in the internal winning area, an upper special winning opening where the ball guided by the upper movable blade can enter, and a lower movable blade And a lower special winning opening, into which the guided ball can enter, wherein the game control device opens and closes the upper movable blade a predetermined number of times when the ball wins in the specific winning opening, during which the upper special winning opening is opened. When the ball wins the winning opening, The dynamic blades a predetermined number of times opening and further the winning balls to the lower special winning opening therebetween, the gaming machine for causing a predetermined number of times opening and closing the upper and lower movable vanes alternately. 2. The game control device, when a ball wins in the upper special winning opening and the lower special winning opening while the upper and lower movable blades are alternately opened and closed a predetermined number of times, the upper and lower movable blades After completing the predetermined number of times of alternate opening and closing once,
2. The gaming machine according to claim 1, wherein the upper and lower movable blades are alternately opened and closed a predetermined number of times repeatedly, up to a certain number of rounds. 3. The game control device according to claim 1, wherein when the upper and lower movable blades alternately open and close a predetermined number of times, when a ball wins in the upper special winning opening, only the upper movable blade is opened and closed. 2. The gaming machine according to claim 1, wherein when the ball wins the lower special winning opening, only the lower movable blade is opened and closed. 4. The alternate opening and closing of the upper and lower movable blades is set as a series of operations for opening and closing the upper movable blade first, and then opening and closing the lower movable blade with a delay of a predetermined time. A gaming machine according to claim 1, 2 or 3.