Robotic Operating Buddy

R.O.B., known in Japan as Robot,  is a character that appears in the Nintendo Entertainment System where he serves as the mascot. He was a minor antagonist in Super Smash Bros. Brawl, but after all members of his kind got destroyed, this last R.O.B. is the only survivor of the Subspace Bomb explosions and joins the Brawl to fight Tabuu, who serves as the true main villain because he has different plans than R.O.B., Bowser, Ganondorf and King Dedede.

R.O.B., known in Japan as the Famicom Robot (ロボット,Robotto), is a newcomer in Super Smash Bros. Brawl. His full name is Robotic Operating Buddy, and he's based on the R.O.B. NES peripheral. He was unveiled in a mass leak prior to the Japanese release of Brawl. R.O.B. was confirmed on the DOJO!! March 6, 2008, 3 days before the US release. He is currently the first and only inorganic character playable in the entire Super Smash Bros.series. Although it looks like R.O.B. is using wheels to move on the ground, he is actually using small jet bursts from his Robo Burner. These have no effect on the fuel for the special move Robo Burner, however. Every time R.O.B. moves, he leaves small air circles on the ground, reinforcing the idea that he doesn't even use wheels to move on the floor. Ivysaur and Pit also have this property.

R.O.B. currently ranks 18th on the tier list, due to his great projectiles, great matchups, and excellent recovery. His Robo Beam and his Gyro Top along with a few medium and short-range moves make him a well-balanced and versatile character able to attack his foe at whatever range they happen to be. However, R.O.B.'s fairly large size (making him an easy target for combos), and lack of reliable killing moves (due to him being prone to Stale Move Negation on his killers) are doted on as obstacles to higher tier placement.

R.O.B. makes his first appearence in Stack-Up and Gyromite in 1985 when he served as the mascot of the game. He also appeared in the commercials for the Nintendo Entertainment System as the corporate mascot.