One of the aspects that defines Overlord is him being the only double powermaster. After getting Botcon Gigatron/Overlord, I decided to make a few additions. Giga and Mega are made from PCC Leadfoot's engine / Targetmaster Minicon. The gun is Armada Prime's. Engines mounted: Mount them to Overlord by putting the powerlink peg into his screw hole (tight fit - don't push in very far). Flip the shoulder flaps up to access the hole - kinda like G1 Overlord's opening chest armor. As for Giga and Mega, this minicon makes a great powermaster, but doesn't work without inverting the legs. The minicon peg has to face backwards in robot mode to allow for combination as an engine. (Pic - one flap down - the other up/hole exposed) It's a simple mod to help make TFCC Gigatron a little more like a genuine Overlord.