The gameplay itself is basically okay running around shooting things, but I found two significant problems.

1. The controls are awkward if playing on a PC.
2. While powerups aren't reset on death, neither is enemy toughness. So if you die a couple of times getting used to the controls and auto-aiming, you'll become unable to kill anything to get upgrades before getting swarmed (only reset by refreshing the page).

I'd suggest having another control option, and placing some limit (initially at least) on how far enemy toughness can outpace your level.

I played until about level 17, at which point the game looked a lot like a giant ball pit and was experiencing mass lag due to all the entities on screen.

Vampire survivals but game's budget is 1$

Honestly such a great game. The bast part is the definitly intended feature where all your upgrades are kept when you die, it's really fun. And after getting to a high enought level, it becomes so fun to shread throught the hords, thought the amount of exp gained in those later moments is really low.

you get very very little xp and you're lucky to get it on kills, you're lucky if your extremely slow in movement and firing speed bullet hits something (even with the homing.) I'll be standing directly in front of something and it'll just zip around it somehow.
if you manage to get an upgrade, it's usually too weak bc the enemies have already grouped up in the hundreds and are too strong to 1 hit.
basically you're way too weak and the enemies are way too strong. controls would be much better if they were arrow keys too. the mouse could work, but if you go outside the game window you stop moving and that's very easy to do when you're getting swarmed.
an ok start but needs a lot of work.