Here's a five minute waster.
http//www.adultswim.com/games/fiveMinutes/index.html
That's a lot of fun except I can't get used to the direction buttons. Need to be able to use a proper control paddle or something.
Died in 415.
The controls are like some old ZX Spectrum games by Ultimate (Play the Game) ) Night Lore and Night Shade spring to mind.