GB Genjin Land: Viva! Chikkun Oukoku (Gameboy)
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CRT Test Screen
Start a new game, buy a ticket and enter the theme park. Exit and when the screen with Genjin on a log appears, hold A+B+Select.
Sound Test and Minigame Select
At the title screen, hover over the second option, hold one of these, and then press A or Start.
Code
Effect
Left+Select
Sound Test.
Right+Select
Play any minigame at any difficulty.
View Ending
Start a new game, then buy a ticket and enter the Theme Park. Go to the exit and when asked to accept/cancel, hold A+B+Select.