This is a fangame made by WrestleHog Ware Co. LTD™
Fire pro bmhof 117

Ingame screenshot

It features two teams: A wrestling team and a Sonic team, and two types of gameplay: wrestling and Sonic.

Characters include Sonic, Knuckles, Tails, Rouge the Bat, Amy, Eggman, Big the Cat, Metal Sonic, Metal Knuckles, Robo Big, Robo Knuckles, John Cena, Hulk Hogan, Mankind, Kane, Macho Man Randy Savage, Metal John Cena, Robo Macho Man Randy Savage, and The Great Muta.

Expected release date was 4/29/11, but it's been in development limbo for the past year.