Mario and Sonic: Heroes Unite! is a Crossover Fan Fiction between the Sonic the Hedgehog and Super Mario Bros. franchises, created by Azurixx. It can be found here.The story starts as any Sonic game would go: Sonic's Arch-Enemy Dr. Eggman attacks Empire City and Sonic goes to stop him. A fairly common task for Sonic.That is, until a portal suddenly shows up and sucks Sonic, Tails, Amy and Eggman inside.When Sonic goes back into his senses, he finds himself in the Mushroom Kingdom. Now he has to find a way to find the rest of his friends who also got sucked up return to his world. Unbeknown to him, though, an evil force, bigger than Eggman and Bowser's powers combined, is threatening both of their worlds...The story's divided into three parts: "The Mario World Saga", which corresponds to chapters 1 through 46, "The Sonic World Saga", which corresponds to chapters 47 through 92 and the "Finale Saga", which corresponds to the remaining chapters.As of August 27th, 2013, all 100 chapters have been posted and the story is completed!
This Fan Fic contains examples of the following tropes: