Slimeslinger

I think you've got a really nice base going here! Gameplay loop is obviously simple, but the combat feels nice, and I actually found the game to be a bit addicting even in its current state. I've got a few main points of feedback I'd love to throw out there:

1. I don't know if this would matter to you or not, but currently, the gun just rotates around the player without ever flipping to "reorient" itself. This causes scenarios where the gun is literally upside down while shooting. Not a huge deal, but it's actually really easy to modify the gun's rotation behavior so that it flips depending on the direction it's currently facing. I used that functionality in my own first game that I put out recently, and I got the code from this video: How to make a gun that shoots at the cursor [Godot 4]. Said video covers how to implement multiple other functionalities, but if you skip to like 1:37, that's where he talks about flipping the gun depending on the direction it's pointing.

2. Certain power ups seemingly can't be used while the player is moving. The bombs were one of them. Just can't move and shoot at the same time. Not sure if that's intentional or not, but it was definitely a bit jarring. 

3. I can't collect XP when I have the power up that allows me to just run into enemies to kill them. This wouldn't be a huge deal if XP didn't disappear after a certain point.

4. The power up that causes the player to shoot out a large circular pattern of bullets seemingly stuns enemies and just kind of leaves them locked in place if they don't die right away. 

5. This might an issue with the game being uploaded as a web application as opposed to a downloadable .exe file, but leveling up seems to be... broken? after a certain point? I've been restarting the game multiple times now, and I noticed after a few times that even if the level up bar was fully filled, the level up wouldn't actually occur until I collected some more XP. It got worse with each restart, and now I can't even make it past level 1. The bar is fully filled up while I'm playing, but if I die, when it shows me how much progress I made, it shows the bar as being barely filled up. It's odd. I had a lot of weird issues when I tried uploading my game as a web application, so that really might be all it is.

That's all I can think of to bring up right now- keep up the great work!!