So, Reshiram has a jet engine coming out of its ass.
Well, Bulbapedia says it’s a tail.
“Reshiram has a jet engine-like tail, which it uses to accelerate itself when flying at high speeds.”
But it definitely looks like it’s coming out of its ass. That’s gotta be uncomfortable. Also, I find it difficult to take a legendary pokemon seriously when it has a jet engine coming out of its ass. Could be my bias from growing up with the original pokemon, but I’m just not feeling it with these newer legendary pokemon and their jet asses.