All Star Janken: Battle Portable

Sinopsis en inglés

Select your favorite idol and match her in "Paper Scissors Stone". If she loses, she will drop one piece of her clothes until wearing only her swimming dress. Each game consits of five rounds. If you can win all five rounds in a row, you can view a special ending sequence. Every time you pass one game, you will receive a passcode. Win against all nice idols to unlock a special sequence.