Ok, the game it´s really really good. Graphics, style, music, and the "two buttons" theme are great, but it has a lot of bugs, and some things to improve.
1) In the Itch version the white screen of the death makes that you cannot replay the game in the same browser... 2) In the Gd version the stats of your bullets are not reset after death, so if you die a couple of times, you finally play without bullets XDD
3) And... The enemy secuence is always the same (right-left-right-left). Once noticed, the game is really easy to beat, hehe. Needs more variation (the miniboss, for example, some randomisation... and maybe shoot at power-ups to refill bullets, etc).
Again, a greeeat game, "bullet time!!" XDD