Overall I think the game is fun and has a lot of potential. I must say the BAM-17 feels the weakest out of all of them, the reload time quickly caused my death. Also, thought you should know, the death screen doesn't stop the game... it kinda just keeps going ^^;

I am sad that you had to do this all within just a few short days, but what you've made is great!

It was really fun! It completely felt like a good ol' arcade game- the music in particular was on-point in that regard. Except for a slight lack of polish (which given you made it in only 3 days isn't surprising: it was impressive how much you've done in such a short time) it wouldn't have felt out of place in an arcade...

I'm sure if you'd had a little more time you would've done some of these, but the only few tweaks / polishes I would've made myself are-

1. Turn the voice audio up (it seemed very quiet compared to the guns/sound effects)

2. Just add a little check so you can't get the same upgrade option twice (or thrice) in a single wave 

3. Balance the weapons a little more... grenades were a little OP, everything else seemed a little weak... I think a cheap / lazy way (aka the way I would've done it lmao) is to make the grenade launcher a bit worse too (longer reload time, perhaps?) and rather than balance the weapons against the enemy strength, I'd've just slapped a 'difficulty' slider on the main menu that just set the enemy health / spawn rates / damage lol

All in all it was a load of fun! And if this was the sort of game that I was into (I'm a total nerd, so overly in-depth, niche simulation games are more my thing lol), I can totally see myself spending waaay too long playing lol. GG! :)

good game! and you made killing innocent people fun :D