Small but disastrous changes to famous video games was the topic, and I *highly* suggest you check out the other submissions too, there were some brilliantly silly ones in it. :)
"You don't know Jack" is one of the funniest multiplayer games I ever played. It puts you into a virtual quizshow in which you try to answer trivial questions. The fun comes from the presentation - the show of course has a showmaster too, and that guy is just hilarious!
Of course it wouldn't be as much fun if the questions were much, much harder...
Then I was thinking about what would make Pacman really boring - and I guess one way would make it practically un-losable.
But that'd be wayyy too nice. Much better would be a Pacman that gives you no chance in hell to win - but initially pretends to:
Bubble Bobble - a game in which you Burp Bobbly Bubbles at the Baddies...
The Legend of Zelda - Link and the Vuvuzela of time:
Then I went a little naughty - Stalker, Call of Prippir... Papira... Prissipus... Damn, you know the real name:
And, since things are the way they are, once you sunk that low you can at least enjoy it - Torchlight:
and Mortal Combat: