* Fixed control of ball direction with the bat which was broken in a previous release.
* 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.