Marvel Tribute
You can play most free online games at crazyschoolgames.com
Game Controls:
First player moves with "Arrow Keys" and shows his skills with "I,O,K,L" keys. And second player uses "E,D,S,F" keys to move and "G,H,B,N" keys to fight. You can also reach command list or special tactics section by pressing "P" key during the game.