I really liked the game! It feels like a very polished experience aesthetic and gameplay wise. The gameplay is satisfying and all the little effects, like the gun recoil and the dash animation are very well done!
In terms of constructive criticism, I think you need to have different SFXs for the dash and the enemy explosion. The game is currently relatively simple, so it isn't a problem, but if you eventually add more enemy types and the game gets more difficult, pressing the dash and hearing the explosion of an enemy can be really disorienting and confusing for the player!