Hi! Thanks a lot for your feedback!
Yeah, the original idea was maybe to also have ammo, projectile enemies, more unique guns, and maybe a knife attack with knockback by the player- which probably would've worked a lot better for situations with enemies that get "too close"- and a lot was lost during time constraints.
I still think that after fighting an enemy for a couple of times, you can definitely kill them without dying or getting hurt, but the fact that it's somewhat problematic in the first time is a pretty serious issue, so I agree with you there.
"One game a week" mainly taught me that it's really hard to polish a game well during one week (and adding features- it's good for preventing feature creep though), but I'm glad you pointed those things out- and I'd definitely love to remake this game in the future, with some decent polish- I won't copy your examples completely (probably other enemies rather than the red guys would shoot, since I like the way that the red guys attack, but I'll fix the main problems you criticized).
I'll probably polish it and post it in my "one game a week" blog, a few weeks from now. I'd like to complete overall 10 "one game a week" games before working on a better portfolio, so I think I'll post it in said blog at about that time-
P.S: Extra Credits forever! <3