During game press RUN, SELECT to get to score screen. Press U,D,L,R,I. Choose and stop sounds with I and II.
Sound Mode
Pause game, then U,R,D.
Passwords
Unlimited BallsAAAAAAHAAA
Lots of Balls
NAXATSOFT1
Ending Password
FFFFFFFEEE
Two player password
AAAAAAAAAAAAAAABCE. Player 1 = unlimited balls, player 2 = 32 balls.
Weird codes
Input any password. For the last letter of the password input A, press I and then RUN. If this doesn't work then continue to B then C, etc. until you get one that works.
Bonuses and Balls
Blue ball: complete any one of bonus stages Pink ball: send ball through tower after destroying all but one of tower guards 2,000 ,000 point bonus: when putting ball into play, send it into crown without touching slime roulette. 100,000,000 points: Get the face to the last stage with your bonus tip points between 60 and 69, and have your bonus multiplier at 9. This is tough.
Password Creation
ABCDEFGHIJ Meaning (letters correspond to numbers are A=0, B=1, C=2...Z=25): A: Control byte: Leave at "A", it's used to confuse code hackers. B: Score x 100 C: Score x 1,600 D: Score x 25,600 E: Score x 409,600 F: Score x 6,553,600 G: Score x 104,857,600 H: Balls x 1 I: Balls x 16 J: Checksum Byte: To figure it out, easiest way is to input all the letters for the code, then start at "A" and hit RUN, then cycle through to "Z" until one works!