To unlock different music for the Game Select screen (the Corkboard), beat The Arena once.
Bonus Films
Throughout the course of the game you can unlock little films in the Theater mode where you can watch hidden videos in the game or the past cutscenes. Below is the film name and how to unlock them.
Unlockable
How to Unlock
Dyna Blade
Play through Dyna Blade
Gourmet Race
Play through Gourmet Race
Grand Opening
Simply watch the opening of the game
Great Cave Offensive
Play through the Great Cave Offensive
Great Escape-Hero Up High
Beat the Great Cave Offensive
Halberd Scenes 1-3
Play through Revenge of Meta Knight
Live Healthy
Defeat Dyna Blade
Revenge of Meta Knight
Play through Revenge of Meta Knight
Spring Breeze
Play through Spring Breeze
Tomorrow's Wind
Defeat King DeDeDe in Spring Breeze
Dyna Blade
Beat Spring Breeze.
Golden Frame on Corkboard
If you get 100% in your file, the Corkboard will have a golden frame around it.
Gourmet Race
Beat Spring Breeze.
Helper to a Hero
Complete The Arena.
Mario Characters in King Dedede Battle
When you are battling the final boss of Spring Breeze (King Dedede), if you go to the far left and right of the arena, you can spot characters from Mario games.
Megaton Punch
Clear Revenge Of The King.
Meta Knightmare Ultra
Complete Revenge of the King.
Milky Way Wishes
Beat Spring Breeze, Dyna Blade, The Great Cave Offensive,Gourmet Race, and Revenge of MetaKnight.
Mini-games
Complete the indicated task to unlock the corresponding mini-game.
Mini Game
How to unlock
Dyna Blade
Complete Spring Breeze.
Gourmet Race
Complete Spring Breeze.
Helper to a Hero
Complete The Arena.
Megaton Punch
Complete The Arena.
Meta Knightmare Ultra
Complete Revenge Of The King.
Milky Way Wishes
Complete Spring Breeze, Dyna Blade, The Great Cave Offensive, Gourmet Race, and Revenge Of MetaKnight.
Revenge of MetaKnight
Complete Spring Breeze, Dyna Blade, The Great Cave Offensive, and Gourmet Race.
Revenge of The King
Complete Milky Way Wishes.
Samurai Kirby
Complete Meta-Knightmare Ultra.
Sound Test
Complete the first six games.
The Arena
Complete Milky Way Wishes.
The Great Cave Offensive
Complete Spring Breeze.
The True Arena
Complete The Arena, Helper to Hero, Revenge Of The King and Meta Knightmare Ultra.
More Bonus Films
Throughout the course of the game you can unlock little films in the Theater mode where you can watch hidden videos in the game or the past cutscenes. Below is the film name and how to unlock them.
Unlockable
How to Unlock
Flying Fortress Kabula
Play through Revenge of the King
Friends and Sun
Complete Revenge of Meta Knight
Halberd Scenes 4-6
Play through Revenge of Meta Knight
Halberd Scenes 7-9
Play through Revenge of Meta Knight
Kirby's Triumphant Return
Complete Milky Way Wishes
Marx's Mad Plan
Play through Milky Way Wishes
Milky Way Wishes
Play through Milky Way Wishes
Revenge of the King
Play through Revenge of the King
Staff Credits
Complete Milky Way Wishes
To the Battlefield
Play through Milky Way Wishes
Reset Game
You can reset the game by hitting R, L, Start, and Select at the same time.
Revenge of MetaKnight
Beat Spring Breeze, Dyna Blade, The Great Cave Offensive, and Gourmet Race.
Revenge of The King
Complete Milky Way Wishes.
Samurai Kirby
Clear Meta-Knightmare Ultra.
Secret HAL Room
On Revenge of the King, if you go to Stage 2, there is a secret room with the word HAL spelled out. To find it, go to the area with the stone switch. When you hit the switch, and the blocks break, go to the left and press up. There should be a door there. When you go through, you will face a mini-boss. Beat him and continue to the right, Soon, you should get to a room with blocks spelling out HAL, along with an Invinsible Candy.
Sound Test
Clear The First six games.
The Arena
Complete Milky Way Wishes.
The Great Cave Offensive
Beat Spring Breeze.
The True Arena
Complete Helper to a Hero.
Unlocking special videos
These are videos that require specific tasks to be completed, and unlike other videos, can be viewed only in the Theater, as they are not part of the story.