Edit: and anyone who does something like that stupid Hatman game where you run into buildings that blow up will be hung, drawn, quartered, stuck together again with duck tape and shredded. With a spoon.
The KNP idea is good, but I really don't feel like downloading K&P and installing it again. And someone already said that it doesn't work on their computer... so try to just think of an idea.
Here are some ideas:
Game with no scrolling
Highscore game
WarioWare style game (collection of minigames that only last 3-5 seconds)
Movie-based game (sort of like the fan game one)
Stress Reliever (remember back when those were really popular?)
Theme game... Ninjas, western, futuristic, medievil...etc
I really liked the one button game idea too. Or even two buttons. I think there's a lot of potential with that, just because it'll force people to do something different.
Just say like 3 things (example: zombies, orange, pigs) and everyone could just make something related to it (picture, screensaver, game, music, whatever) and then only judge how funny is it?
I don't like the KnP compo idea. Why? It's sort of weird using an innefficient chunk of crap to do what "extensions and fancy crap" can do much better. Why use crap when you can use crap++?