A free application for Android, by RUD Present

The 12 Locks II is a great game application to try when you’re bored or just want to kill time. It is simple yet exciting, and it will keep you engrossed for hours. The game’s rules are simple; a man known as “plasticine man” locks all doors to 12 locks as a result of his bad habit, making it difficult for him to find his keys and unlock the door. Your mission is to assist him in finding all of his keys by solving various puzzles. You will be able to explore three rooms in order to find the 12 keys.