Ultimate Boxing is an engaging and fun boxing simulator where you can train to be a professional boxing champ! You can use your mouse to make devastating jabs, uppercuts, and haymakers. You can use a combination of punches to take out your enemy. But remember to also guard and block!Ultimate Boxing is an engaging and fun boxing simulator where you can train to be a professional boxing champ! You can use your mouse to make devastating jabs, uppercuts, and haymakers. You can use a combination of punches to take out your enemy. But remember to also guard and block!