When was All Star Janken: Battle Portable released?

All Star Janken: Battle Portable was released on January 14, 2007.

What platforms is All Star Janken: Battle Portable available on?

All Star Janken: Battle Portable is available on PlayStation Portable.

All Star Janken: Battle Portable

About

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.