For tons of lives, follow these instructions:
Set up a two player game. Player 1 must get
an extra life.
Now both players should lose all their lives.
Player 2 will return with 99 lives, and when
he loses one life,
Player 1 will have 99 lives too.
Here are the codes:
LEVEL 11 - SPIN
LEVEL 21 - FLIP
LEVEL 31 - BALL