First, Cell stores up an immense amount of energy as he prepares a Super Kamehameha. He then brings his hands forward and fires a blast that Cell claims has enough power to wipe out the entirety of Earth's Solar System.
Cell uses this attack at the end of the Cell Games, against Super Saiyan 2 Gohan. Though Gohan counterattacks with the Father-Son Kamehameha, Cell overpowers Gohan several times during the Beam Struggle. However, as Cell is about to finish off Gohan, Vegeta distracts Cell with a huge ki blast. With Cell distracted, Gohan uses the brief window of time to unleash all of his power, overpowering and completely annihilating the evil Bio-Android.
Appearances in games
The attack appears in cutscenes in Dragon Ball Z: Budokai and Dragon Ball Z: Budokai Tenkaichi 2. It was named "Solar Kamehameha" in Dragon Ball Z: Budokai Tenkaichi 3, where it is Super Perfect Cell's Ultimate Blast; it is capable of inflicting major damage to the stage of play. With a few exceptions to which map is being played, whenever it hits, it completely changes the stage to Ruined Earth or Dying Namek. The attack also appears in Super Dragon Ball Z, Dragon Ball Z: Tenkaichi Tag Team, the Raging Blast games, Dragon Ball Z: Ultimate Tenkaichi, and Dragon Ball Z: Battle of Z.
In Dragon Ball: Xenoverse, it is named Perfect Kamehameha and is Cell's Ultimate Skill. It can be learned by the Future Warrior by taking Cell on as a Master and completing Cell's training. If the Future Warrior technique is performed in battle while Cell is still their Master, then the attack will receive a Z-Assist boost.