Neat idea, great work completing this!
The visuals are pretty nice (I'm not a huge fan of mixed pixel sizes, but that's more of a personal preference than a criticism), the colour palette works great, and the lighting & environment are nice details.
The core concept is an interesting idea, but I kinda wish it didn't take me out of the game entirely. From my perspective as a player, I'm here to play the game first and get a highscore second, so I'm always going to choose the option that lets me play the game longer. Maybe the player could scale abilities with their points, so they move faster, have higher health, or do more damage, but every so often they get a chance to bank some points but have to risk playing in a weaker state. You could even add roguelike elements and have players gamble points for unique power ups and items. This combines both the desire to play the game and desire to get a highscore, and gives the player meaningful choices without a clear answer. Of course you don't have to do it this way, but some system to keep the player engaged for longer and give points more meaning would go a long way.