Frieza holds one of his hands in front of him with the other hand supporting it (in a manner similar to the Explosive Demon Wave). Then, he fires a large purplish-pink energy wave or energy sphere at the opponent, inflicting a huge amount of damage. The blast creates a huge mushroom cloud explosion on impact and has an electrical aura surrounding the explosion.
Frieza first used this attack in his Third Form to deflect Gohan's Full Power Masenko. However, Piccolo deflected it away with a Ki Blast. Frieza uses this attack several times during his battle against Goku on Namek. He also uses the technique in his 100% Power form, during his battle against Super Saiyan Goku: when Goku moves behind Frieza, Frieza fires the Death Cannon at Goku, which at first sends him back. However, the Saiyan gathers enough strength and flies through the attack without any injury and double-kicks Frieza in the face. Goku then blasts Frieza down to the ground with an energy sphere of his own.
In Dragon Ball Super, during his battle with Super Saiyan Blue Goku, Golden Frieza utilized this technique in a beam struggle with the Saiyan. Later, after powering up to maximum, Golden Frieza used this attack again in order to knock Goku to the ground, the Saiyan attempted to hold it back but was overwhelmed.
During the Universes 6 and 7 Gods of Destruction Selection Martial Arts Competition, after poisoning Piccolo during their match, Frost uses a Death Cannon in order to blow a hole through Piccolo, ending the match.
Appearances in games
This attack is one of Frieza's super attacks in Dragon Ball Z: Buyū Retsuden (named Mega Buster). Frieza uses a similar attack in the opening cutscene of Dragon Ball Z: Budokai Tenkaichi 2. It is one of Frieza's ultimate moves in Dragon Ball Z: Burst Limit; after charging the beam, Frieza screams "You are the one who dies!" and then he launches it at his opponent. Base Form and Full Power Frieza use it as his Blast Spark in Dragon Ball Z: Battle of Z.
The blast also appears as part of the card "Ki Blast Explosion" in Battle of Z. The card increases the knockback of energy attacks.
- Red Energy Blast - A version of the Death Cannon used by Frieza in his First Form.
- Punishing Blaster - A version of the Death Cannon used by Frieza in his Second Form.
- Killer Ball - A energy wave barrage used Frieza in his Second and Final Forms. He uses this against Piccolo, and later against Goku.
- Last Emperor - A completely one-handed version of the Death Cannon also used by 100% Power Frieza. Frieza used this attack when his left arm (and all of his lower section) was cut off by his own Death Saucer. Super Saiyan Goku countered it with his Angry Kamehameha.
- Death Blaster - Another version of the Death Cannon used by Frieza in his Mecha Form against Super Saiyan Future Trunks.
- Death Spike - A more powerful version of the Death Cannon used by Golden Frieza.
- Emperor's Blast - A variation used by Golden Frieza and the Future Warrior, where the user spins around to fire a fiery gold/violet Death Cannon to hit any opponent behind them, making it useful for attacking opponents trying to flank the user. Appears as a Super Skill in Dragon Ball Xenoverse, as part of the Resurrection ‘F’ Pack DLC.