Cute little game, nice visuals! I like the bullet patterns every gun has and the enemies! But there are things to note:
- The pause menu doesn't actually pause, so if a player wants to take a break, he'll be swarmed by enemies while on the menu;
- The SFX could work, but I would advise a pitch variation to the bullets sounds so it doesn't feel so repetitive. Also, different SFX for different guns would be welcomed;
- The player has a nice and simple hit flash effect and sound for damage feedback, i just wish the enemies had the same;
- The interaction button for picking a gun is too small because it stays above the gun. One way you could do it that I've made in past games, is to have a big text on the UI on the inferior part of the screen, sort of like Hollow Knight does at the tutorials.