Type bmax at the full screen when the game firsts starts up. 
Note: This will work on Windows XP, but not on Windows NT 4.0.
Note: When the above code says "full screen", it does not mean the full screen when 
the game starts up. Press [F4] to enter the full screen game mode and the code will 
work. The extra balls will appear from the yellow wormhole. 
Note: Enabling this code will disable high scores from being recorded.