Omake Sounds
Successfully complete the game as any character under the normal difficulty setting.

Omake Background Music
Successfully complete the game with all characters under the normal difficulty setting.

Omake Pictures
Complete each of the following tasks to unlock a picture for that character: successfully complete story mode under the normal difficulty setting; successfully complete sudden death mode; successfully complete story mode under the hard difficulty setting. To unlock the picture featuring all characters, successfully complete story mode under the normal difficulty setting with all eight characters.

Hard Difficulty
Successfully complete the game as any character under the normal difficulty setting.

Play As Yukari
Successfully complete story mode under the normal difficulty setting as Chiyo, Kagura, Osaka, Sakaki, Tomo, and Yomi.

Play As Nyamo
Successfully complete story mode under the normal difficulty setting as Yukari without using any continues.

Fight Against Nyamo
Play through story mode without losing any times to face Nyamo as the final Boss.