Unlockables.

Unlockable Secret Sword: During gameplay, pause and input Up Down Up Down Left Right Left Right Circle Square Circle Square. Unlockable: Battle Rattle During gameplay, pause and input Left Left Right Right Circle Square Square Circle Up Down. Unclockable: Telephone During gameplay, pause and input Right Left Right Left Down Down Up Up Circle Square Circle Circle Square Square. Unlockable: Chainsaw During gameplay, pause and input Up Down Up Down Left Right Left Right Circle Square Circle Square.