Stronger Opponents
At the title screen press: X, Circle, Square, Square, X, Square, Circle, Circle, X, Circle, Circle, X

Unlimited Arrows
At the title screen press: X, Circle, Square, Square, X, Square, Circle(2), X, Square, Square, X

Weak Opponents
To get Costumes and Extra Art, you have to beat the arenas, which means completing all of the arena challenges for both time attack and body count

Invincible Rau
At the title screen press: O, X, SQUARE, O, X, SQUARE, O, SQUARE, X, O, X, SQUARE, O, X

Health pick-ups are all 100%
At the title screen press: Press X, X, X, X, Square, Square, Square, Square, O, O, O, O.

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