Quote Originally Posted by GoktimusPrime View Post
Hardest: Masterpiece Megatron; he is a royal pain in the <expletive>.
Quote Originally Posted by Ultra Streak View Post
Masterpiece Megs for sure. It's so hard ive never fully transformed him. I tried and gave up out of fear of breaking something.
Agreed, he was a pain, I transformed him once, took me 1 1/2 hours, then back to robot mode. He will stay that way the rest of his life.
MP Grim is hard as well, I haven't even tried. My bro-in-law did, but he will stay robot mode as well.
The Jets are fickle as well, but not as hard IMO.

And for a FAB, Frenzy is a pain to get back into Alt mode.

As for an easy ones, my Battle Chargers are easy, I just have to let got and they transform And the Duocons