Dragon Kamehameha is a technique usable by Goku when he is in Shenron Mode.
Overview
The Dragon Kamehameha is charged in the same way as the God Kamehameha, however when fired it Shenron spins around it, going straight forward towards the opponent.
Video game appearances
The technique only appears in Dragon Ball Heroes, and is usable when Super Saiyan God Super Saiyan Goku enters Shenron Mode.