Credit to for the Donkey Kong sprites, for the Mario and Sonic pose, and for the Geno sprites Without the sprites the cover would be a bust.
Prologue: You're here!
Mario and Sonic The Hedgehog have always been the best heroes of their worlds. But what happens when they are sent into each other's worlds? Now it is up to Mario, Sonic, and their allies to stop both Dr. Eggman and Bowser, who have joined forces, before both worlds fall under their tyrannical rule. But...are they the ones who are really pulling the string?