Since this appears to be the new fad, I've jumped on the bandwagon and made my own smash bros engine. The movement script is based off of Archmage's work. The background is the stage Battlefield from Super Smash Bros Brawl by Nintendo. Player 1 (on the left, green colored) uses arrow keys for movement and p for attacks. Player 2 (on the right, normal colored) uses wasd for movement and space bar for attack. Currently you can only play multiplayer, since I was too lazy to program an AI, though if you want to remix it, go ahead. Enjoy!