Yoshi's Cookie (NES)

Yoshi's Cookie is a puzzle game in which you match rows and columns of cookies in different shapes. The NES version in particular is notable for some fun little animations.

Debug Menu
Game Genie code (US) or  (Japan) re-enables the debug cheat code, which allows you to access the secret debug menu by pressing A + B + Down + Right at the title screen.

The debug menu allows you to select any game mode/round/stage/speed, listen to the sound effects, or view all mini-cutscenes and both staff sequences. To return to the title menu, select the "T" option. Press Up and Down to select an option, A and B to change option parameters, and Start to activate an option. A similar debug menu is also present in the Game Boy version.

Normally, the "SND" option doesn't work due to a bug in both versions which just crashes the game. This can be fixed with Game Genie codes (US) or  (Japan).

Unused Music
Three songs are present in the Sound Test, but never used in-game.