Black Pou

We already talked about how to unlock white Pou. The process wasn't too much hard but this time you will need to play lot of times to a more dificult game to get black skin for Pou.
Now you must play to Sad Pou and try to tap 500 sad pous. This is the hardest achievement for this game, and if you doi you will be able to wear your Pou with black skin.

Keep playing Pou and achieve goals in the game in order to get new items.