Super Mario Crossover packs all your favorite Nintendo characters and personalities into one neat flash game. The world and setting are of the original Super Mario Bros. for Nintendo but instead of only playing as Mario or Luigi, you can now choose between: Mario, Link (from Zelda), Bill (from Contra), Simon (from Castlevania), Samus (from Metroid), or Megaman (from... yes, Megaman). You don't simply play the game the same way as if you were Mario though. Whoever you pick, you get their abilities too so be prepared to be shooting your enemies down from a distance if you pick Bill or Samus. The downside is that you cannot jump on your enemies heads or faces to knock them out. After completing each stage (or dying), you can choose a new character if you wish so in this way you can maximize each character.