The Gamma charges up the attack with their ray gun and then fires it at their foe. Gamma 2's version has his blast take on a look similar to his face. This attack has power comparable to a Kamehameha.
Video Game Appearances
In Dragon Ball Legends, Gamma Blaster appears as the Special Move Arts for Gamma 1 (DBL46-03S). It takes the form of a Rush Attack where Gamma 1 kicks the opponent away and then fires his Gamma Blaster. Additionally, both Gamma 1 and Gamma 2 (DBL46-04S) will fire energy attacks from their Ray Guns as their Blast Arts.