Cheat List
To unlock these cheats, you must first earn 5 stars in Hardcore Mode for each scene number then type these cheats at the title screen.
Runner Mode (Scenes 1 & 2): URUNFAST
Silence Mode (Scenes 3 & 4): ALLRDEAF

Regeneration (Scenes 5 & 6): HEALBACK
Helium Hunters (Scenes 7 & 8): THEYBOOM
Fully Equipped (Scenes 9 & 10): UGOTARMS
Super Punch (Scenes 11 & 12) : UHITHARD
Rabbit Skin (Scenes 13 & 14): BUNYSUIT
Monkey Skin (Scenes 15 & 16): HELLSUIT
Invisibility (Scenes 17 & 18): EVILEYES
Piggsy Skin (Scenes 19 & 20): PIGGSUIT