One off R is a well-designed puzzle game that you can play on www.games501.com for free. Your purpose is to solve some puzzles to find the way to escape from the sealed house. There is a very beautiful bike and sometimes you need to solve the puzzles through the bike’s function. Use the mouse to move and find some clues. This wonderful flash game is a great selection for your spare time and it will train your brain. Enjoy it heartily in your spare time.
