Vegeta shoots the attack from one hand, with the other arm supporting the one that is firing the attack.
Vegeta first uses the attack while training in his Capsule Corporation spaceship. Vowing to surpass Goku's Super Saiyan strength, Vegeta's 300x gravity training has him hit by one of his own energy blasts to which the Saiyan prince unleashes the Galick Blazer attack, causing the two ki blasts to clash into each other and explode the spaceship with him still inside. Much to Bulma's and Yamcha's shock, Vegeta emerges from the rubble albeit severely injured.
Vegeta later uses the Galick Blazer to attack Cell during the Kamehameha Energy Clash between Cell's Solar Kamehameha and Gohan's Father-Son Kamehameha; the Super Saiyan Second Grade was successful in distracting the android and allowing the Super Saiyan 2 to muster the power to defeat Cell.
Appearances in games
Galick Blazer was named in Dragon Ball Heroes, where it is Vegeta's ultimate attack in his Super Saiyan 3 form. It also appears in Dragon Ball Z: Battle of Z, used by Super Saiyan 2 Vegeta, except it is a continuous version. It also appears as one of Super Saiyan 3 Vegeta's super attacks in Dragon Ball Z: Dokkan Battle. Super Saiyan Vegeta also uses it in Dokkan Battle, however, only as part of Super Saiyan 2 Gohan's Super Attack animation.