R.O.B. (ASB)

❮		#41 Lucario	#43 Toon Link		❯
R.O.B. is an unlockable playable character in Arcade Smash Bros. and makes its fourth return in the series (fifth if you count Ultra in) since Super Smash Bros. Brawl. It was confirmed in the debut of the developement of Arcade in April 1, 2020. R.O.B. is classified as fighter #42. R.O.B. also has two unique costumes inspired from Nintendo consoles, such as the Nintendo GameCube and Switch.
R.O.B. has the same beep sound effects from Brawl, reused from Ultimate.