Super Mario Bros. Crossover

Super Mario Bros Crossover is a fan-made crossover platform flash video game released by Exploding Rabbit on Newgrounds on April 27, 2010. It is mainly based on the gameplay of Nintendo's Super Mario Bros. for the NES. The only major difference is the ability to control characters that appeared in other Nintendo Entertainment System games that have nothing to do with the Mario series. The last available version (3.1) was released on December 25, 2013.