Enter the passwords in the password screen of the game.

Password	Effect
CHNNT	Stage 1-1 Clear.
DJPGG	Stage 1-2 Clear.
FKQMM	Stage 1-3 Clear.
GLRST	Stage 1-4 Clear.
JNTLM	First Boss Challenge Clear.
KPBRS	Stage 2-1 Clear.
LLMNQ	Stage 2-2 Clear.
MMNTC	Stage 2-3 Clear.
NNPGJ	Stage 2-4 Clear.
QBHJM	Second Boss Challenge Clear.