Optimus Prime with his Energon Axe.
Optimus Prime disguising himself as Motormaster.
"You've caused enough destruction for one day, Megatron!"
"Megatron must be stopped! No matter the cost!"
Optimus fighting his way through to Megatron
"One shall stand, one shall fall!" Optimus Prime facing Megatron in the original Transformers 1986.
Optimus lives again. And not as a zombie.
Optimus battling a crazed Rodimus.
Optimus using the Matrix to light the Autobots' darkest hour.
Optimus from Marvel Comics continuity
Optimus is handed the Matrix by Sentinel Prime, as seen in flashback in The Legacy of Unicron.
Optimus Prime and Ultra Magnus in Resurrection.
Optimus's Powermaster form.