mfw in a genre there's the bad guy and the good guy teaming up to fight something else 
yesssss the best!! 
also; that one panel with Megatron and OP
"Get up, Prime. You're not done yet."
"Get up, Prime. You're not done yet."
One of my fave tropes tbh
"Enemies banding together to take down a greater threat/common enemy", my beloved