A fun idea for a game!
I think it would be good if holding shift revealed your hitbox, and it might be good to show your score underneath the distance too. I like the polish you've added to the game and the 3D graphics are great. I don't know if I got lucky or not but on my first playthrough I found a lot of safespots by just waiting at the bottom of the screen. Also, you can move through doors after they've closed, giving you little reason to shoot them down.
Viewing post in Atomi, Fire! jam comments
The score actually is the distance, I apologise for not making that clear.
Moving through closed doors without being harmed was a deliberate design choice I'm honestly reconsidering, yeah (they can't physically stop the player, because it's an infinite runner and that would drag them off-screen, so I'd hoped having them knock the player around would be enough of a threat).