What if Exploding Rabbit's excellent Flash game Super Mario Crossover were a real Nintendo game? It would probably look something like this.
This awesome box art was mocked up by Steve Napierski of Dueling Analogs, a comic we regularly feature in our Sunday Comics posts. Seems he was just as charmed by the game as we were, and wanted to show his appreciation.
Of course I would have preferred the game and box art featured Luigi, Ryu Hayabusa, and the tank from Blaster Master, but you take what you can get.
For a printable copy of the box art, check out the link below.
Super Mario Bros. Crossover Box Art [Dueling Analogs - Thanks Ami!]