itch.io

I thought for a second, that it was just a simple top-down shooter but it has some cool little ideas. Auto-firing when the player stops feels non-intuitive at first, but it adds more balance to the game.
Weapon upgrades and different enemy types add some depth to the gameplay.
Sounds are fun and pleasing, and the game in general looks polished enough. The only trouble I had was adding the first upgrade, you have no clear indication of what you should click first - upgrade or selected slot.