It was a fun lil shooter but it's definitely in an early stage, going to list some thing that need addressing:
You can interrupt the reload animation with a melee swing and shoot immediately
Finishing the reload animation gives you no feedback.
The UI doesn't tell you which weapon you have equipped.
Enemies have no firing sound.
Melee should probably hit on the backswing too, just because it looks like another swipe and it would make it easier to time.
All weapons having the same range means that the shotgun is the only one worth using. (By the way, great shotgun, one-shotting two enemies every shot was super fun)
You can reach the end of the level without beating the boss or picking up the key, I submit to you my any% speedrun world record:
Pressing space to advance does nothing.
Launching the game to get the screenshot above, it spawned me at low health and without cigarettes?
Final boss has no death animation:
It took me a while to figure out you could send the eyeball reflection back with a melee attack btw.
For some positives, the shotgun was amazing, the sprites having different death animations depending on the weapons you're using is a fun touch, the portrait on the bottom right is cool but maybe I'd stick with just a doomguy head or simply the phone image, it's a little redundant and doesn't add a ton of information, I totally ignored it during gameplay.
Melee being functional made it so I could run at a group of enemies, unload my shotgun and slice the survivors, viable melee is not something you see a lot in boomer shooters so it's a big plus.
I'm guessing this a "tutorial" game to teach yourself Unity, which makes the various bugs understandable. Personally I like any game that gives me projectiles to dodge and a shotgun to blast baddies with, so I had my fun.
Good luck with this!