I enjoyed my run, and reading over the comments my experience seems to have a lot in common with others here.  To add on two notes I haven't seen yet:

• For the middle portion of the game I regretted taking the second gun upgrade.  When the enemy density is low you tend to want to shoot exactly the right amount of bullets, but since most of the slimes take an odd number of bullets to kill (not accounting for extra ricochet damage), you can't do that perfectly anymore.  Similarly I avoided the fire speed upgrades for too long for the same reason, and ended up regretting it towards the end when waves got denser
• I noticed that when standing near a wall I could sometimes have one of the two guns fire bullets that act as if they have already ricocheted once, maybe because the gun starts behind the wall and the bullet passing the wall to enter the gameplay region counts as a hit?

Overall though I had a good time here, you did great work!

I enjoyed doing a run with this game. The wave dynamics are well-organized, and the game design makes it more exciting as you progress. Great job!

I had a lot of fun with this!

My Notes

• The bullets did more damage to me between levels than any other time.
• It’s hard to select an upgrade if there are still bullets around.
• I ended up avoiding firing unless I knew it was going to hit any enemy.
• Music fits well.
• Firing feels ok but could do with some more impact, gets better with two guns.
• Took me a while to realise there was a dash but I think that’s on me.
• Could do with a little more enemy variety.

Not a bad game but quite difficult to advance further, because of all the bullets still remaining after the wave. I shot myself quite often because of that. All in all a nice game, but,  just as others have stated, with a few tweaks it could be a bit easier to play and thus a bit more fun. The music and sounds are nice!

I really liked the concept and gameplay loop. The game isn't paused during upgrade selection which would be a good qol fix. I also think all bullets should be removed when a wave is completed. The SFX was a bit sharp, but when I lowered the volume and the music started playing, the bullet sound matched the music really well. The visuals are also very polished, and I had fun playing!

"You shot yourself 111 times." You'd think I'd know better by now.

So I have a few notes. Its a shame the health restoration and bullet damage doubling is only in the description, it could have done with an in-game tutorial. The health meter seems to be under the player, as I've found out on the last wave when I decided to stick myself into a corner. A bit more enemy variety could have helped with the optimal strategy being to shoot every new slime with the exact right amount of bullets as soon as it arrives. I ended up maxing out my health before buying any other upgrade, and the slimes were still never any danger to me. The upgrade shop not pausing the game or clearing out the bullets did cost me a fair chunk of health though :]

On the positives side, the graphics look neat and its very clear what's happening at all times. Music's a good fit (at least far as I can tell, audio is a mystery to me). The shop offers enough upgrades that there's room for multiple playstyles, for example creating a deadly wall of bullets in the path of future slime only to inevitably have to dodge it myself instead made for an exciting strategy.  Most importantly, it's clearly fun enough that I got to the "survive" wave, died to bouncing bullets into my own face, and started another run anyway. 

I think what's there is a fun way to kill ten minutes, and with a few tweaks there's a fair bit of potential for more.