Board Thread:General Discussion/@comment-5808856-20141104173641/@comment-1458758-20141111192547

AnimeEx wrote: Actually Ben was the one who said that he hates turning into Alien X and locked him to accidentally transform into him and gave Gwen and Kevin the keys. i was at Ultimate Alien I think. Also when rook wanted to see Alien X Ben said He'd rather not and when rook asked Ben said it's a thing or somewhere along those lines.

Also if Ben had turned to Alien X, Vilgax could have panicked and attacked Ben. As Alien X he still have to convince Serena and Bellicus and will not be moving for a while and that could have been bad for Ben or to Max.

Bellicus and Serena are hard to convince, even though the universe is ending it still took a while before convincing them. I know he doesn't like to transform into Alien X, what I'm saying is the purpose of the lock was to keep others from using its power.

As for Bellicus and Serena, I was under the impression that after "Ben 10 vs. The Universe" he could freely control at least some of Alien X's power without them, and just needed their consent for the big decisions.