He fires it with one hand.
Super Saiyan Goku uses the technique many times in the series: he uses it against Pikkon's Namekian Final Flash, causing an explosion. Goku later uses it against Majin Vegeta's Energy wave. It is also used in conjunction with Vegeta's identical Energy Wave while facing Super Buu (w/ Gohan absorbed) prior to fusing with Vegito. The combined blast used by Goku and Vegeta is named Double Whammy in the Dragon Ball Z Collectible Card Game.
Video Game Appearances
Saiyan Aura Blast was named in the Dragon Ball Z Collectible Card Game.