Start the game with the aquabug command line parameter. Then, press one of the following keys to activate the corresponding cheat function.

Effect	Key
Toggle text shadows	S
Increase or decrease text shadow gray	P or L
Increase or decrease text shadow alpha	O or K
Increase or decrease bitmap shadow gradient	I or J
Increase or decrease bitmap shadow offset	U or H
Increase or decrease bitmap shadow alpha	Y or G
Toggle level cheat mode	C
Change current class	[Insert] or [Delete]
Change current level (only for Class 4)	[Home] or [End]
Change current stage	[Page Up] or [Page Down]
Toggle narrow stage	[F8]
Toggle debug options	D