Unlockable Modes:
Unlock the following modes by performing the corresponding tasks:
MODE – HOW TO UNLOCK
Death Label mode – Reach level 10 under Very Hard mode.
Hard A mode – Complete the game under the Normal difficulty setting.
Hard B mode – Complete Hard A mode.
Hard C mode – Complete Hard B mode.
Very Hard mode – Complete Hard C mode.
Extra mode – Complete the game under the Death Label difficulty setting.