Keen Dreams is a proud member of the "lost" games of Softdisk (which has changed its name into "Impulse Software" and is now supposedly dead) and Apogee nor ID have anything to do with it. It has been made by the same crew that created the other Keens. Keen has been kidnapped by evil vegetables from his nightmare, and he'll have to battle against lettuce, carrots and finally the big spud-king to wake up. The gameplay in this Keen is poor compared to the others (no stunner, no pogo), and the sound is very hard, if not impossible, to get to work (The music isn't there at all). Still Commander Keen is Commander Keen; Download it, you won't regret the 350 Kb.
Although I never have to use them (as i am soooo good ;) here are some cheat-keys for this game. Ctrl+J - Jump Mode. Ctrl+G - God Mode. Ctrl+I - Free Items. Ctrl+W - Warp to any level.