When you begin the level Street Brawl you will begin to fight Ironide. Quickly run away from him and walk down any street. As you begin to walk around, look for a street that goes downhill. When you do find one, you will notice a gap between the street and a building. Lure Ironide to the area and then jump in the gap. After he jumps in, jump out quickly,and you will notice he can't get out. DO NOT GO TOO FAR AWAY, because if you do, he will jump out. Just stay in the area and throw cars poles and trees at him from a distance. ENJOY!