Someone suggested I do a battle helmet for my Super Mode Optimus Prime. After a while, I thought some kind of Prime-ish roll cage could be cool to give Prime a more armored mode. Now the challenge was: how do I integrate this new component in the mix? Here's what I come up with. From the front, all looks the same. Almost... Powermaster? Engine block removed Prime in robot mode, back view Engine block transforms into a jet pack! Jetpack transforms into battle helmet! Might not be obvious, but this new little piece almost has as many transformation steps as the big Prime himself! Hard a very hard time figuring out how to squeeze that thing in the little space left inside in truck mode, pivot was in the way, fists were in the way, truck doors were in the way... The design is not final, but it gives a pretty good idea. Trying to make the engine mode more silver to differenciate it from the blue battle helmet.
It's not done yet. Now that I know how much space is available in there, I'll see how far I can take this thing. If it's not working to my liking, I'll just do an engine that turns into a kickass weapon for the super mode (and re-integrate the left underarm weapon I had to ditch to make room for the engine block).
I've dropped the helmet concept, I'm now working on putting a weapon in there. Can't decide if it will just be deployable through the grill to give the truck a Stealth Force mode or if it will be detachable for the super mode as well. So far, the weapon seems too short for a good super mode weapon, the combined Prime is so big that it just looks like a pistol in his hand...