Gunpey (WonderSwan)

The debut of the eponymous puzzle series, named after Gunpei Yokoi. It has a story about how a frog sheriff rescues a catgirl by connecting lines against his opponents.

Also, hammers. And inflation. And bombs.

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Prerelease Info

Test Menu#

The game has a Test Menu that can be accessed by modifying the state for the next state transition.

The state machine is located at E800:0000 and is called at F000:017D. Setting a breakpoint at either address and modifying the state byte value at DS:0208 to 0x82 and continuing execution will place the game into the Test Menu.

There are two tests: Sound (0E) and Graphics (0F), while the remaining selection from 00 up to 0D will place the game state into Story Mode.

Graphics Test#

The graphics test can be accessed by executing 0F from the Test Menu and/or by modifying the state byte value at DS:0208 to 0x81.

There are 8 groups and up to 32 sprite animations per group that can be played; with options to pause the animation and/or play the animation in slow motion.

To play an animation, press X3.

To pause an animation, press X4.

To slow an animation, press X1.

Sound Test#

The sound test can be accessed by executing 0E from the Test Menu Menu and/or by modifying the state byte value at DS:0208 to 0x80.

There are 19 tracks of background music and 76 sound effects that can be played.

To play a background track, press Y4.

To select the next background track, press Y2.

To play a sound effect, press X4.

To select the next sound effect, press X2.

References#