[UPDATE 6-11 to account for removal of spring and sliding joint] I know I saw lots of threads about this before and I'm not sure if pics were ever posted. So here's how to pose Megatron with his fusion cannon open. To get it to stay open this way, either remove the spring in the arm or switch it over to the claw arm for Shooting Claw Attack!! (Thanks to Ogami Daigoro for pointing out the spring switcheroo!) First transform his arms like so: Slide the fusion cannon inward on the wrist: Clip the wrists together: And tada!!! Do I win a prize?