Sidering Knockout is a boxing game with great game's options and graphics. The objective of the game is to knock out all opponents and get the championship belt. Try to do combinations and dodge the opponents punches. A tip would be to find the best key combination and use it repetitively. Try not to get hit by spamming punches. Good Luck! Punch Combination - Arrow Keys. Left / Right Punch / Defend - A,S,D Keys.