Step onto the ring to knock out all champions with your brutal punches for real boxing experience in io game universe! BECOME A CHALLENGER BOXER NOW! Attack with fierce face punches and combos to knock out others. Can you become the champion fighter of the boxing io game arena? EASY IO GAME CONTROLS! Smash everyone with your hits and make combos to knockout with only one button in the world of fighting! ULTIMATE FIGHTER SKILLS! Each hero has different special move to use in epic combat to knock out other fighting boxers.