Zapper Cheat Codes for Gamecube

Infinite Lives
Pause during game play, hold L and press UP, UP, LEFT, LEFT, RIGHT, LEFT,
RIGHT

Easy Extra Lives
On the level "Voodoo Choo Choo" make your way to the front of the train. when
you reach the very front you will see a giant eyeball on the front of the train. Zap
the eyeball four times and you will get 4 free lives!

Fly
Complete the first world with 400 points.

Get ultimate zapper
Buy lots of dragonflies.

Secret passages
Follow your friend's directions to discover a bunch of secret areas!

Win the round
Collect six eggs in all rounds.