Activate the following cheats by entering the corresponding codes:

CHEAT FUNCTION - CHEAT CODE
Toggle God mode - etgod
All items - etstuff
Got Wings, Chicken/Fly mode off - etfly
Level skip - etwin
Battledrone upgrade - etdrone
Toggle map display - etscan
Play as alien - etalien
Restart current level - etrestart
Play in a rainstorm - etrain
Check user maps menu - etmaps
Cat runs off - etcat
Throws a cat - etpull
Suicide - etboom