Unlock Audio Clips for that character
Beat the game in Story Mode, Normal Difficulty with any character.
Unlock BGM in the Omake Section
Beat the game withj all 8 characters
Unlock First Picture
Beat the game in Story mode, Normal Difficulty with any character to unlock their first picture
Unlock Group Picture
Beat the game with all eight characters in Story mode, Normal difficulty
Unlock Hard Difficulty for that character
Beat the game in Story Mode, Normal Difficulty with any character.
Unlock Nyamo
Beat the game without continuing in Story mode, Normal difficulty with Yukari.
Unlock Second Picture
Beat the game in Sudden Death mode with any character to unlock their second picture
Unlock Third Picture
Beat the game in Story mode, Hard Difficulty with any character to unlock their third picture
Unlock Yukari
Beat the game in Story mode, Normal difficulty with Tomo, Osaka, Kagura, Yomi, Sakaki, and Chiyo