Somari the Adventurer

Somari the Adventurer or simply Somari is the main protagonist from the game of the same name and its sequels. He is the alter-ego of Mario when Mario finds Tails' shoes and wears it that turns him into Somari which he increases speed, his intelligence and his strength. He can get the seven Chaos Emeralds from his nemesis Dr. Eggman to become Super Somari which his hair is gold that glows and is invincible.

His brother is Somari Luigi who is the alter-ego of Luigi, the brother of Mario. Mario has adopted the name Somari the Adventurer which he wears speed shoes that makes him run like Sonic the Hedgehog, Miles "Tails" Prower, Amy Rose, Shadow the Hedgehog, Jet the Hawk, Cream the Rabbit, Vanilla the Rabbit and all of good people like an rabbit who runs faster than ever.

Role
When Mario discovers Tails' shoes he decides to wear it, the magic shoes wore turns him into Somari, his alter-ego which he gains enough powers to free the imprisoned animals who are locked in their robot forms sent by Dr. Eggman and Bowser. He meets Sonic the Hedgehog and teams up with him and, then he and Sonic manage to get the seven Chaos Emeralds in a Special Zone to become invincible.

Mario later helps Sonic to fight Dr. Eggman and Bowser by working together, he and Sonic use the seven Chaos Emeralds to transform into their Super forms which they are invincible, after defeating Bowser, he and Sonic manage to free the imprisoned animals and revert back into their normal forms.

Then Mario gives Sonic an truce, vowing to meet him again, he later creates green Tails' shoes for his brother Luigi, giving him the name of Somari Luigi, Mario and Luigi love each other, even Peach and Daisy.