On Friday, November 25th, Cartoon Network introduced a game changer: Ben 10 / Generator Rex: Heroes United, an hour-long special event of out-of-this-world proportions! The special brought Ben Tennyson of Ben 10 fame over to the universe of Rex Salazar, of Generator Rex fame. There was a smash up, a team up, and then a battle to end all battles with the malevolent Alpha Nanite; an evil, twisted mirror of the Nanites that Rex utilizes for all of his builds. For months we’ve been waiting to watch. For hours we’ve been watching, rewatching, and reviewing what we’ve just seen. So what’s the final verdict? Who won? Will there be another? And, overall, how did we rate Heroes United?