The gun sounds are extremely meaty, I liked that a lot.
Besides that I'm unsure what the game is supposed to be. The bomb, small hurtbox and the sheer density of projectiles remind me a bit of danmaku games but you can also carefully kill all the turrets in the wall with the axe subweapon like in a more traditional sidescroller. Simply dodging all the enemies is also a valid strategy thanks to the aforementioned hurtbox and hover ability.