Various cheats
     Type during game:

Cheat code              Effect
ETGOD                   God mode on/off
ETSTUFF                 Got all the stuff you need
ETFLY                   Got Wings, Chicken/Fly mode off
ETWIN                   End current level and go to next level
ETDRONE                 Battledrone/Upgrade
ETSCAN                  Display map on/off
ETALIEN                 Play as Alien
ETRESTART               Restart current level
ETRAIN                  Play in a rain storm
ETMAPS                  Check user maps menu
ETCAT                   A cat runs off
ETPULL                  Throws a cat
ETBOOM                  DEATHWISH?