A free app for Android, by Sugame.

Mito Rescue: Pull the Pin is an engaging puzzle game that will make you have fun while improving your brain. This game is all about logic, so don’t expect to find complex mechanisms or to have any advanced understanding of the gameplay. It’s all about following the simple logic of the game, which makes it perfect for players of all ages.

In this game, you will play as the adorable monster named Mito, and you will need to use your mind to solve a series of challenges. In each level, you will need to find a safe way to pull the pin, so that you can rescue your friends.