Many thanks for your feedback i apreciate it :)
For the "behind me" theme , actualy we wanted also to implement in a scenaristic way that i think is finaly not really understandable : you play a character that can turn it's head to switch character and gameplay, so the other playable character is "behind" your head literaly
So for us it made sense, also with this (enemy behind you) that is clasic but works as you sayed
But you pointed a good point i think next time we should think more how to have a more original take on a theme