I think spread guns like the uzi and the other one (i don't recall the name) are kinda overpowered when compared to others. I found myself ditching the shield gun since there re very few demons that shoot missiles in my playthrough. The bazooka is nicely balanced.
I guess it be cool would be to be able load a playthrough where you haven't died yet but maybe the final game won't be long enough to require this (I just gave it 20 mins while I try other demos too). I understand and like that dead means starting from 0 but if I just wanna take a break and option to load current playthrough would be neat.