Several
In the main menu, click L1 + R1 and without releasing them clicks:
To have more power in the turbos:
Triangle, down, x, x, round and right.
INVISIBILITY:
up, x, x, down, right, x, x, above.
Uka uka infinite:
left., triangle, right, left., Round, right, below, x, x.
Infinite bombs:
triangle, right, down, right, up, triangle, left.
Secret characters:
Papu Papu: left., triangle, dercha, down, right, round, left., X, X, below.
Komodo: Below, round, left., x, x, triangle, right, down.
PINSTRIPE: IZQ., right, triangle, down, right, down.
Thanks to Gecko for the trick.
Infinite masks
You can get infinite masks as follows: you keep pressured L1 and R1;Left pulses, triangle, right, left right circle two down and listen to a sound like a bell.
Trick by Ricardo Aguirre Venturo .