At the title screen, enter L1, L2, L1, L2, L3, R1, R2, R1, R2, R3.
To change costumes, enter Jack's closet in his house.
Successfully complete the game to unlock the Dancing Jack costume.
During gameplay enter RIGHT, LEFT, L3, R3, LEFT, RIGHT, R3, L3.
Get an "S" rank on all levels and successfully complete both secret chapters to unlock the Phantom Jack costume.
Successfully complete the game to unlock the PJs Jack costume.
Defeat the spider Boss to unlock the Pumpkin King costume.
Defeat the Doctor to unlock the Santa Jack costume.
Get an "A" rank on all levels to unlock the Thespian Jack costume.
Unlock Thespian Jack, Phantom Jack, Dancing Jack and PJ Jack
In Jack's house, enter the code Up, Down, Left, Right, Click The Right Stick, Click The Left Stick.
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