Umi no Nushi Tsuri 2

For some unknown reason this was later released as a Nintendo Power GB Memory writable game.

Debug Mode
Game Genie code will start you in a fairly basic debug menu. Pressing A will enter the desired menu and pressing START makes the menu selection.

GOTOPRG
Test various game events and configuration settings.

GAME EDIT
Edit additional game event and setting parameters.

FISH OBJ
Displays all the fish in the game.

Return
Returns you to the title screen.

Unused Super Game Boy Function
PAL_PRI. When bit set to  palettes automatically switched to the software's custom palette when palette or attribute settings are altered. The Super Game Boy palettes are disabled by the game, ergo this command is unused. TOSE could have originally intended to have the palettes switch back as done with Donkey Kong Land and other games. The Game Genie code will enable palette selection.