Thanks for the great feedback! I did try and polish it a lot, that's what I found out is what I really love about making games!
As for the difficulty curve, it's a roller coaster! Level 3 is insane and then it goes downhill to relatively easy and back up again towards hellish proportions in the last level! Even got feedback that I made a really good rage game, which was not intended :P In the flow of making a game in a short time it's difficult to measure the difficulty.
The spawning is a simple fix probably, I was too lazy to fix it and should have prioritized it more.
I didn't even think about the camera moving too much. First time using cinemachine and I was like "Yep, don't have to do anything and it looks smooth" And slow motion is frying my brain right now, that would've fit so well.
Danke!