Unlock Hard mode:
Finish the game on Normal mode. If you start a new game, you will get access
to a bonus sub-quest and you will start the game with previously unlocked
money, costumes, and the drill power-ups. You will have to find the
Headgear again, they will be at their previous levels.
Unlock Happy mode:
Finish the game on Hard mode.
Unlock the original Japanese voice acting:
Finish the game, then begin an another new game. Then, hold L + R and press
Left, Up, Right, Down, Left, Up, Right, Down, Left, Up, Right, Down at the
difficulty selection screen. If the code is accepted, you will hear a sound.
Unlock costumes:
Finish any of the following the following task, then use the dresser in the
corner of Parin's room to change ouitfits.
Workout Gear:
Finish Boss Rush mode in Beginner or Normal mode.
Work Uniform:
Finish Boss Rush mode in Hard mode.
Witch Outfit:
Donate 30 Gold Medals to Hyperbolic in Happy mode.
Vampire Outfit:
Donate 30 Gold Medals to Hyperbolic in Hard mode.
Swimsuit:
Finish Boss Rush in Crazy mode.
School Uniform:
Get the good ending in Happy mode.
Santa Outfit:
Set the system date between December 25th and 31st.
Samurai Outfit:
Donate 30 Gold Medals to Hyperbolic in Crazy mode.
Princess Dress:
Donate 30 Gold Medals to Hyperbolic in Normal mode.
Pajamas:
Get the good ending in Normal mode.
Nurse Outfit:
Finish Boss Rush mode in Happy mode.
Monkey Suite:
Get the good ending in Beginner mode.
Maid Outfit:
Buy from the vending machine at Spinach Caverns - Shadow Grotto.
Leopard Suit:
Get the good ending in Crazy mode.
Kimono:
Set the system date between January 1st and 7th.
Chinese Dress:
Get the good ending in Hard mode.
Armor:
Donate 30 Gold Medals to Hyperbolic in Beginner mode.
Play as Popon:
Finish game on the beginner, normal, hard, and happy mode. Begin a new game
and get the drill then return to town. Go to the Fan's cake shop. Talk to
Popon and you will be able to play as her.
Boss Rush mode:
Finish game on the beginner, normal, hard, and happy mode. Begin a new game
and go to the final locked house in human town and type LEGENDARY as a
password. Note: Type "yarushikanaiwane" as a password in the Japanese version
in Hiragana/Katakana.
Unlock the movie viewer:
Finish Boss Rush mode.
