knightphoenix2
Member
If I remember correctly, Jack needed to go back because Alien Bat sent a Zetton army to attack Planet Ultra.
Thanks! Presumably, once that was taken care of, Hideki was able return home and start a new life.
Btw, one of the things I'm hoping to find out here (amongst a great many others), is why Asuka seems to have a very personal vendetta against Zettons, as we saw in UGL ...