Ok. I am VERY Proud of this custom figure. I think I am the first (Turns out I'm not ) to modify the legs to collapse in truck mode like in the MP figure. Now his truck mode looks much better. Enjoy. Here's what I used. Cut up two sets of Deluxe Optimus Prime's legs, Acid Storm Legs, crazy glue, and Loctite Epoxy Putty. I was going to try Mighty Putty but could find any.