Invinciblity:
Go to the "Abilities And Powerups" screen, push Square. After you
entered to restricted area, type the following code:
Square, Triangle, Up, Down, Circle, Up, Triangle.

All Abilities:
Go to the restricted area and enter:
Left, CIRCLE, CIRCLE, TRIANGLE, LEFT, UP, X, CIRCLE, RIGHT

Hyper Bunny:
Go to the restricted area and enter:
DOWN, RIGHT, DOWN, UP, DOWN

Combos:
Air Smash - While in air, hold B and then release on target
Chain Combo Charge - X, X, X
Charged Smash - Hold B and then release on target
Continuous Sweep - hold down B + L
Glide - A, A hold down
Hyper Dash - With Hyper Bunny, push B
Juggle Combo - X, X, X, A
Smash Combo - X, X, X, B
Sweep Combo - B + L