100x Big Bang Kamehameha
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
The 100x Big Bang Kamehameha (100倍 ビッグ バン かめはめ波, Hyakū-Bai Biggu Ban Kamehameha; Literally meaning "One Hundred Times Turtle Destruction Wave") is an energy wave attack used by Gogeta in his Super Saiyan 4 form.
Super Saiyan 4 Gogeta puts his hands in front of him like the normal Big Bang Kamehameha, but charges it with much more power in order to create a stronger attack. He then fires a huge, streaming blue wave of energy at his opponent, creating an explosion and inflicting a massive amount of damage.
Budokai Tenkaichi series
The 100x Big Bang Kamehameha is Super Saiyan 4 Gogeta's ultimate attack in Dragon Ball Z: Budokai 3, Dragon Ball Z: Infinite World, and the Budokai Tenkaichi video game series. The attack is capable of inflicting major damage to the opponent and stage of play. With a few exceptions to which map is being played, whenever Super Saiyan 4 Gogeta uses the 100x Big Bang Kamehameha, it completely changes the stage in play to the Ruined Earth stage. Super Saiyan 4 Gogeta says, "I'll send you to the next world with this, times one hundred!" in the Budokai Tenkaichi series.
Dragon Ball Z: Ultimate Tenkaichi
It is named Full Power Big Bang Kamehameha (全力 ビッグ バン かめはめ波, Zenryoku Biggu Ban Kamehameha) in Dragon Ball Z: Ultimate Tenkaichi and has a reddish-orange color.