The art is really amazing! The concept is good and the game itself is great, but it has some downsides.
I understood what to do quickly, which is a good thing, but I feel like it could use a short introduction or tutorial.
There is a number of characters but you don't notice what they do except at the start of the game
It lacks audible and sometimes visual feedback. For example,
I have no idea when or where I took damage. The only change happening is in the small hp text, which is usually not noticable. I'd recommend sound and the same enemy hit effect on the player (also there is a bug where you could get damaged multiple times with the same bullet without the hp being updated).
The bomb ability has no range indicator, and other projectiles and abilities would benefit a lot from adding hit effects and sounds.
The game is a bit hard because you can only fire at a 90-degree angle while enemies can easily fire diagonally and in all directions.
I hope you don't get from this that I hate the game. It has potential, and the art and music are really good, and most enemies and mechanics are already implemented and it's a really good job for a 48 hour window, I'm hoping to see a polished version one day on steam.