Exploding Rabbit just release version 1.1 of Super Mario Bros. Crossover at http://supermariobroscrossover.com/ , with a new playable character, Ryu from Ninja Gaiden, it was so awesome, and other character get a little updates as well, except Bill from Contra, he is strong enough. And, Simon still the worst character in the game, he always bring me game over.
Despite of Simon, the game is great!