There were a bunch of 4 second games, including 4 second frenzy. They were all the same, just differen't minigames.
well i play the impossible quiz along with the sequel when i want to strain my brain i play balloon tower defense 3 when i want to do something out of the ordinary but i play Tetris most of all on tetrisfreinds.com i love it!!!! (my marathon high score is 486,966)
Check out DAN-BALL Power Game, it's so simple yet I waste a ton of time on it. They even have a wiki dedicated to it (yeah, it's java...whatever. Same concept as a cheesy flash game). Web game Powder Game - web games site DAN-BALL