R.O.B. using Super Diffusion Beam in Super Smash Bros. for Nintendo Wii U.

Super Diffusion Beam is R.O.B.'s Final Smash in SSB4. R.O.B. transforms into a giant laser cannon and shoots a giant laser towards the opponent straight forward that splits into four smaller ones, then does a final shot. It is possible to aim it up and down, like Full Blast and Zero Laser.

R.O.B.'s Special Moves
Brawl SSBWU/3DS Ultimate
Standard Special Robo Beam
Side Special Arm Rotor
Up Special Robo Burner
Down Special Gyro
Final Smash Diffusion Beam Super Diffusion Beam Guided Robo Beam