Super Tilt Bro. for NES

"Super Tilt Bro. for NES is a fighting game that recreates the Super Smash Bros. series experience on the classic NES system, featuring multiplayer and online play via a Wi-Fi chip in the cartridge. The game offers various moves and combos, with new music and polished graphics in the arcade mode. While game carts are in development, interested players can sign up for release notifications."