Here are some cheats and tips for the game Zool.
Stage and level skip:
Pause game play and press C, Right, A,
B(2), A, Left(2), A, Right,
Down. Resume game play. Pause game play again and press
Up to jump to the next stage or Right to jump to
the next level.
Extra life:
Hold Start and press Down, Up, Left(2),
A, Right, Down during game play.
Full time and energy:
Hold Start and press Right, A, Down,
A, Right, B, Left, Up, Right
during game play.
Extra time and energy:
Hold Start and press B, A, Right(2),
A, C, Up, Down, A during game
play.
Brighter pause screen:
Hold Start and press Down, Up, Left(2)
during game play.