It was inevitable the LEGO Optimus Prime would be reverse engineered into his other characters. Thanks to @mrkgoo on Twitter, who has done just that with his very own Nemesis Prime and Ultra Magnus builds made from stock parts. He even managed to work in some articulated knees for them. Read on to see the notes and images.
Transformers RID Optimus Prime / Super Fire Convoy MOC - 2016 Fans Choice Build by BWTMT Brickworks
Optimus Prime Lego that actually transforms!!
Xiaomi x Transformers Cyberverse Optimus Prime Revealed
Transformers LEGO Nemesis Prime and Ultra Magnus Custom Builds
LEGO MOC Nemesis Prime And Ultra Magnus Based On The LEGO Optimus Prime Set - SHOUTS
Optimus Prime v3. I made him more G1 influenced because I binged War on Cybertron. Feedback is appreciated : r/lego
Rise of the Beasts Optimus Prime : r/lego
Lego Mega Optimus Prime by Autobot-7712 on DeviantArt
I re-skinned Optimus Prime with parts in my collection. Behold the beginnings of Ultra Magnus : r/lego
Transformers Generations Power of the Primes Evolution Nemesis Prime ( Exclusive) : Toys & Games
Transformers Generations Leader Powermaster Optimus Prime Action Figure : Toys & Games
Transformers LEGO Nemesis Prime and Ultra Magnus Custom Builds
Ultra Magnus The Figure In Question
New set from Chinese alt-brick brand: Dark Optimus Prime : r/transformers