Neat concept, I like the idea of music speeding up with the player. Did you make your own engine? That’s cool! This game is hardly 1-bit, though.
Viewing post in Eat diamonds and switch the light jam comments
While it is allowed, the sprites themselves have shading; you can see it on the diamond: https://v6p9d9t4.ssl.hwcdn.net/html/8532817/atlas.png
It can be fixed easily, though; just dither it with Aseprite or any other pixel art tool.