Originally Posted by egghead
Leobreaker isn't that great...the only thing is that you need to open it if you want him to be Prime's arm. I haven't figured out how to make him the arm and still put Prime's guns on though.
You tuck prime's arm and shoulder flat to his back, kind of like 1/2 trailer. Then the supermode back-pack fits over the 1/2 cab. Even though I don't have an open Leobreaker, I tried prepping prime for the arm.
If you watch the cartoon, you'll see how to do it.
*EDIT* Are you asking about prime or leobreaker?