A free app for Android, by Superhero Fighting Games Free.

Real Punch Boxing 3D: Kick Boxing Fighting Game is an action-packed fighting game based on real boxing, with realistic graphics, and with a story that will keep you engaged and wanting to know what will happen next. 

In the game, you can choose to fight in the ring, in a city street, or in a country fair, which will all be based on the level of skill that you have. You can choose to fight against other boxers or against a champion, and the game will be based on who wins the fight.