Megaball.
The best breakout clone ever. It simple graphics
and music help to create very addicitive to
gameplay. Not until modern PC games like
Baldur's Gate have I spent so many hours on one
game. Unlike SOTB I,II, and III, Megaball lured
in the "non-gamers"along with console gamers very
sucessfully. Many of my college friends spent more
time on this game then they did on the SNES.
Deluxe Galaga was almost as addictive.