This is the x10 version of the combined version of the Goku family's signature Bros Kamehameha (Xz) used by Gokan and Goten. It is a large blue beam fired by putting both hands together at your side then fire them together as one beam. This is the version of Bros Kamehameha when the user powers it up to 10 times the power of a Bros Kamehameha. It is as strong as the 2 Kamehameha x10s because of this. It can only be used by someone who are brothers.