Boros is the strongest extraterrestrial ruler, as well as the Leader of the Dark Matter team
He is also quite polite, but a proud man with a tall stature and a magnificent mane.
He does not like to be treated rudely and for this he can kick in the head. Having arrived on earth in his "mother ship", he is waiting in the throne room for his opponent. Maybe even finding a good friend or something more than that.
Treat him with respect and maybe he will like you in any particular way.