Unlockable - Unlockable Costumes | |
| Monkey Suite | Get good ending on Beginner mode |
| Pajamas | Get good ending on Normal mode |
| Chinese Dress | Get good ending on Hard mode |
| School Uniform | Get good ending on Happy mode |
| Leopard Suit | Get good ending on Crazy mode |
| Workout Gear | Clear Boss Rush on Beginner/Normal difficulty |
| Work Uniform | Clear Boss Rush on Hard difficulty |
| Nurse Outfit | Clear Boss Rush on Happy difficulty |
| Swimsuit | Clear Boss Rush on Crazy difficulty |
| Maid Outfit | Buy from vending machine at Spinach Caverns - Shadow Grotto |
| Kimono | Set PSP date to January 1~7 |
| Santa Outfit | Set PSP date to December 25~31 |
| Armor | Give 30 Gold Medal to Hyperbolic at Beginner Mode |
| Princess Dress | Give 30 Gold Medal to Hyperbolic at Normal mode |
| Vampire Outfit | Give 30 Gold Medal to Hyperbolic at Hard mode |
| Witch Outfit | Give 30 Gold Medal to Hyperbolic at Happy mode |
| Samurai Outfit | Give 30 Gold Medal to Hyperbolic at Crazy mode |
| Normal Clothes | Starts off with this |
Secret - Boss Rush Mode | |
| In Boss Rush Mode, you fight all 8 bosses one after another.To unlock Boss Rush Mode, clear game under Beginner, Normal, Hard, and Happy Mode, head to the last locked house in human town, and enter the password: - English version: LEGENDARY - Japanese version: yarushikanaiwane (in hiragana/katakana)After clearing Boss Rush Mode under any difficulty, talk to BlackBean and you'll get access to see any movie in this game. | |
Secret - Play as Popon | |
| To unlock extra character Popon, clear game under Beginner, Normal, Hard, and Happy difficulties. Start new game, get the drill, and go back to town. You'll find her standing in front of Fan's cake shop, talk to her and ask her to switch. Popon use sword as weapon, she can't use any headgear or clothes, but she is powerful. | |
Secret - Japanese voice | |
| To unlock original Japanese voice, clear game under any difficulty, start new game, while on the difficulty select screen, hold down the L and R buttons and enter: Left, Up, Right, Down, Left, Up, Right, Down, Left, Up, Right, Down. A sound will play if the code is entered correctly. (Thanks to Jeduthy, for the info). | |
