The technique drastically varies between its users. Frieza simply fires a large, crimson energy wave for his version, while Gohan forms a golden energy shield around himself, condensing it into a sphere in front of him, and then fires it in energy wave fashion.
Gohan uses this attack to destroy the Makyo Star. While Gohan uses an energy shield to protect himself, Piccolo, and Krillin from Garlic Jr.'s Dead Zone, Kami and Mr. Popo soon emerge from the spirit world inside the Lookout. With Kami back, Piccolo regains enough strength for him and Krillin to exit the energy shield. While Piccolo and Krillin distract Garlic Jr., Gohan destroys the Makyo Star with the Red Energy Blast, depriving Garlic Jr. of all of his strength and sucking him back into the Dead Zone. Although Garlic Jr. witnessed the attack, he was too dumbfounded by Gohan utilizing the attack to even attempt to intercept it before the Makyo Star was destroyed.
Video Game Appearances
The Red Energy Blast is named in the Dragon Ball Z Collectible Card Game, used by Frieza. Gohan's Golden Dome Attack is given the same name (despite not being red at all).