Slippy Toad
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Slippy Toad is a character from the Star Fox series. He also appeared in Super Smash Bros. Melee in the Corneria arena, and the Venom arena. He (along with Peppy Hare, Falco Lombardi, and Fox) will occasionly shoot energy bursts at the players on the arena. He also got a trophy in the game.
He also plays a role in the event Slippy's Invention. In this event, Slippy has "invented" a Cloaking Device which makes Fox and Falco invisible.