The main character and parts of the UI are blurry, which adds extra color and makes this not a true 1-bit. Dithering was used to great effect in other areas, though, and I adore the tardigrades.
Good sound effects, the music was thematically perfect but could have used a bit more length to the loop; even in a short game like this one it got to the point it was wearing on me a bit, but that there was music at all amongst all this content is quite an achievement, considering the time frame and the scope of the project. :>
While trying to play I found that successfully shooting anything made my game crash, so I ended up just running through, and couldn't beat the final boss; still a fun little romp in an unusual environment. Good stuff!