Powernoid is a Breakout clone with powerups inspired by Megaball for the Amiga!

Changes:

Improved collision detection by checking the edge of the ball in the direction it is travelling.
Bat movement made slightly faster, and ball turns red when fireball powerup is active.
Added powerups to two more stages so every odd stage now has a powerup available.
Change made to second ball behaviour in multiball mode.
Change to high score encryption so the save file is incompatible with previous version.

http://forums.qj.net/showthread.php?t=146178