TFP Weaponizer Optimus Prime is a great figure viewing it in front. Big, nice painting, with shoulder cannons too. However the back is really messed up, mostly because of the leg is missing half of the leg piece, so in both robot and car mode, that part looks really bad. My solution is to fix this issue. 1) Need a RID Hightower 2) In truck mode, transform Hightower as shown on the picture, now we have a heavy tow-truck, and the issue of OP's leg is covered in truck mode. 3) Time to fix the robot mode As shown in the picture's yellow circles, pull off both arms of Hightower 4) Now attach these 2 arm pieces to the back of OP's legs, as shown in the picture. It's quite secure. No need to modify anything and the problem is gone. 5) That's not enough, what about the rest of Hightowers? I drilled 2 holes as the 1 and 2 on the pictures, glued 1 small Lego pole inside circle 1. So that 1 and 2 can be attache and detach anytime. 6) What we have here? Heavy Hightower-hammer, and size is just right for Weaponizer Optimus Prime to use. 7) weapon-alliance Optimus Prime! 8) With this new weapon, he can even fight Ultra Predacon head-to-head . of course u can reverse the order and tranform back to a complete Hightower.