The implementation of the theme was really good - I love the addition of the choice and having to balance positives and negatives. I think there are a few niggling issues that stop the game from being great, though:

• increase the player speed and fire rate dramatically. Like, 2-3x 😅 same with bullet speed for the player
• more enemies with lower health! Give me lots of things to shoot and I'll be much happier ;)
• I know it's a jam so this is a really minor point, but the UI needs a lot more thinking through. Have a browse through https://fonts.google.com and pick a better font, and don't use the default Unity button borders - just remove the sprite entirely. Flat boxes look much better than the default Unity ones 😂
• feedback! I didn't really know when I'd been hit, so dying came as a bit of a surprise. I originally thought I only had one life until I played a couple of times. You should also make the enemies flash when they get hit, it's not really very satisfying to kill them at the minute.
• visual clarity - the contrast between background and bullets was another contributing factor to why I didn't feel like I was getting hit. I didn't actually notice the bullets half the time.
• randomisation on the upgrades - I often got a set of three where my powerup was the same, and was something boring like increased accuracy.

I think, with a little bit of polish after implementing what I've talked about here, this could be a really fun little game 😁 I think it's one of the best implementations of the theme I've seen, it stands out far above the other "random event every 10 seconds" ones because you've got the addition of the choice. Good job!

Good work. I liked the gameplay quite a lot and it is very fluid, but the graphics could have a higher contrast with the background because sometimes it is quite hard to read what's going on. Also, maybe you could revise how the power-ups/enemy upgrades are combined to improve on the feeling of change.

The upgrade system is really nice, lots of fun to gradually become more powerful, and the effects felt noticeable, especially the one for number of bullets.

One suggestion I have would be to avoid cases where the positive and negative effect on an option counter each other directly. For example, having player attack damage go up but enemy health also go up is essentially no change.

I also felt the color shielding mechanic was a bit unnecessary and took away from the cohesive identity of the game. It didn't negatively impact my experience since it wasn't explicitly required that you use it, but I just thought it was a case where the added complexity didn't necessarily contribute much to my experience.

Nice work overall! I had fun :)

I like how each of the upgrades comes with its own opposing force. Background is a little busy which makes it harder to see what is going on. Overall, good

The concept is very original. I really liked the design of the enemies, and also the upgrades mechanics. Only problem was the background (which made me difficult to understand where the bullets were) and the size of the bullets/enemies. But it was really fun and challenging.
Overall, well done mate :)

pretty hard to tell whats going on most of the time, and pixel sizes are a bit all over the place, but still fun nonetheless. good job :)