Despite Fu stating the attack was dangerous, Xeno Goku notes that, even with this immense power, he and his alternate self are still unable to beat the Dark King. They attack with a combined Kamehameha, which breaks through all of Fu's barriers, forcing him to block it himself.
With their Ki fused by the Supreme Kai of Time, Chronoa, Goku and Xeno Goku face off against Fu.
Goku and Xeno Goku fire a Kamehameha at Fu
