Here's a thread dedicated to games based on ideas which should have ended up in the trash bin, yet somehow ended up becomming published games.
My pick: Cyberdillo - 3DO
(The things in the background are enemies you fight...really)I mean, what were they thinking making a FPS where you shoot plungers? Maybe at the time they had read the news story about the man raped to death with a plunger at the hands of police on the east coast of the US and they thought, "yeah a plunger, that's hard core! Lets make a crappy version of Doom!" I've heard from numerous sources that this game was supposed to be family friendly, who in their right mind though would think that a family friendly FPS would sell more than a handful of copies? The music is uninspired, feeling flat and lifeless. The levels are full of pixilated crap which looks far worse than even the 3DO version of Doom (which is by far one of the worst ports ever made) and it is impossible to at any time take this game seriously.
The best thing about Cyberdillo is the fact that it was soooo crappy, it assured a sequel would never, ever be produced. Had someone simply re-skinned Doom, the game might have then at least been fun to play and the world might have had to endure a Cyberdillo 2. Thank god it didn't.
From Mobygames:
"Yet another disco armadillo first-person shooter."
After being run over by a car, our hero Armadillo is brought back to life by an evil cyber-genetic company. He sets out to stop their evil plans in psychedelic 70's era levels when disco was king. Gather items such as bell bottoms, platform shoes, 8-track players, and lava lamps to keep your shield and funk levels up.
Rather than guns, you shoot plungers and throw princess wands at various enemies such as flying eye balls and laughing gas containers. Open doors as you move through each level (of 4 stages each) and find the specific item needed to advance to the next stage. Stop lights hang from the ceiling in certain areas and will drain your health if you pass under them when they are red. When green, you can pass them with no consequence. There are different special weapons, health (such as crickets and grass hoppers) and shield items in each level. If you run into a Relax laxative box, you will have to find a toilet in 20 seconds or you will die.