User blog comment:LesStudios/Incoming, Zone Fighter Pics!/@comment-25247212-20140901014736/@comment-24277243-20140925162750

@Lamango.

In the show, the Garoga aliens modified him. They took away Gigan's flying abilities, but in return, they gave him explosive scythes. So it's (kinda) worth it, (but not really, the ability to fly is better).