Loved the gameplay overall, the visuals could end up being straining for the eyes for some, but I liked it too.
In case you plan on continuing developing the game, here's a bunch of things I found :
- I'm not sure how it is determined when you get an upgrade choice but it felt really steep above 500 score, and once I got above 5000, every enemy gave me an upgrade, which ended up overlapping the upgrade menu multiple times
- Sometimes the upgrades i was getting weren't the upgrades i was told ("Enemy bullet can destroy enemies has been downgraded by 0%" which i believe is supposed to say "set to true", or "Enemy attack speed has been downgraded by -30%" but i get -10% in player attack speed instead, which was the other possibility of the choice)
- Player movement speed becomes rather irrelevant if you can go into negative and still make yourself move just by firing or dashing (reached -424% and still wasn't dying)
- Jumping and dashing or jumping and firing were the most effective ways I had to move, rather similar to bunny hopping, which sometimes allowed me to jump on enemies or their bullets and above the wall and fall. thankfully, it makes me respawn on the center, but the countdown wasn't working anymore and i could just stay in place infinitely.
- Once you reduce enemy movement speed, when they spawn, they can either push themselves into the ground and be stuck in their spawn point or end up on each other and go on the walls, unable to move or fire and only killable with a bomb
- I had so much negative enemy spawn rate that none were spawning anymore
- I could still shoot in the pause menu, which let me accumulate momentum and move while paused, which ended up resuming the countdown and regular movement of the game even though i was still in the pause menu, but this was rather random
- As soon as i reached negative enemy projectile speed, they started firing really fast, though I'm not sure if it was backwards, but it felt like it was ignoring obstacles sometimes
- I could shoot and pause the game in the main menu