Unlock secret characters by playing Arcade mode repeatedly and collecting enough points to spend in Shop.
Character
How to unlock
Hakushon Daimaou
Clear Arcade mode once, then purchase him for 1000 points
Ippatsuman
Clear Arcade mode thrice, then purchase him for 3000 points
Saki Omokane
Clear Arcade mode once, then purchase her for 1000 points
Viewtiful Joe
Clear Arcade mode thrice, then purchase him for 3000 points
Credit Doronjo mini-game
Press A during the credits. A simple platform mini-game will replace the black background, with you in control of Doronjo and her subordinates.
Fourth character color
Successfully complete Stage 8 (final Boss) in Arcade mode to unlock the fourth color for that particular character.
Icons
Successfully complete Arcade mode to unlock an icon for "Player Setting" for that particular character.
Mini-games
Successfully complete the game to unlock a mini-game specific to the character you used.
Start a match as your partner
Hold [Partner] during the character introduction cinematic before a match begins. You will start the match as your partner.
Tatsunoko vs. Capcom Ultimate All-Shooters mini-game
Defeat the final Boss, then press any button during the credits and it will become playable. The music will change and Doronjo and her allies on a bike will appear. Collect all of the yellow letters to spell "THANK YOU FOR PLAYING". Complete the playable bike sequence to unlock the Tatsunoko vs. Capcom Ultimate All-Shooters mini-game.
Third character color
Successfully complete Stage 4 in Arcade mode to unlock the third color for that particular character.
Victory pose
After winning a match, press Plus at the "You Win" screen to move your character around.
Characters...