Family Computer Robot, also known as R.O.B. (Robotic Operating Buddy), is a fictional character in the Dairantou Smash Bros. series. Originally released as an accessory for the Nintendo Entertainment System, R.O.B. was designed to interact with select games. In the Smash Bros. series, R.O.B. is portrayed as a playable fighter with unique abilities and moves inspired by its original design. R.O.B. brings a nostalgic touch to the game, appealing to fans of classic gaming while serving as a versatile and strategic fighter in the series.