Well...I don't want to be that guy, but it's possible, no damage is something I try after every update (I don't do a full run each time, I try again from the checkpoint where i stopped last time).
First I'll be the annoying guy, then I'll give my opinion
The first enemies in the game (school area) can be bypassed by baiting an attack and getting behind them (I already showed a way to even beat the first boss with melee only...still a pain and takes 10 damn minutes WHILE taking damage, don't even want to try a no-damage melee only run). Later enemies attack too fast or have too wide range to ignore even with baiting, so you have to kill them.
Also some parts are just impossible if you try to take no damage with melee, the extending bridge and area with flower monster (whatever their name are) as such, you need to use the rifle to avoid damage/h-scene.
Okay, enough about being THAT guy, I am not gonna say you are wrong though. Gameplay is kinda lacking as it is, attack and "dodging" (if I can call walking back and forth "dodging") is clunky and...well, there is not much in that. You stay out of range with melee and move back if you are ever caught out of stamina for some reason (except in the annoying parts mentionned above...just use a gun), rince and repeat.
