Ok, please put keybindings and/or explanation of the game objectives somewhere (preferably in the game). Had to read the comments to understand that the thing can move around. With that knowledge, and the fact that NOW i know that the shields are limited i get that the idea is to get kill multiple enemies at the same time (not trivial, since similar games have recharging ammo or shit like that)

Edit: ok, you can put that same info on the screen before the game starts and still leave the info button on the top in case someone wants to look at it again, but I recommend to (maybe for your next game) include it in the game. Just a little screen that said "controls are X & Y", "kill enemies by F", "move with Y,U,I,O", "have fun", and you are good.
Found out there are projectiles... nice. But they work weird, the turret somehow wont align with the mouse.

Needs more work.
It's possible for enemies to spawn on top and even underneath the player, which is not ideal.
The click...limit... thing counter is obtuse to the point I didn't even know what it was at first.
There is never more than one enemy at a time, which makes slower moving enemies very tedious.

I like the backdrop and the little green guy is very cute, but otherwise the visuals are rather lacking.
There's only one enemy and the player is a boring grey circle, which isn't very interesting.

There is also no points counter in-game, which is weird for a hi-score arcade type game, and confusing when every medal is score based.

Though there is evidence that cosmetic changes have been made- fonts, music, etc.- and a options menu is a nice touch, the base of the game is very weak.
The mechanics need to be adjusted, especially enemy spawning.

This was not good at all if I'm honest. No clear way of what's going on with the points and all that. Even understanding the barrier is used to kill the monsters and that I can move by just tapping the arrow keys (Which btw makes this not even fun at all). Barrier reach is way too damn small and I get damaged regardless.

What am I supposed to do? All I could seem to do was click the hole until I died from the green things. Is there a way to stop them?

i got 6
didn't really know what to do though