It fits the jam’s theme well, but I think the visuals could be a bit more appealing. The assets used could stand out more; the black shading makes them blend into the environment rather than helping them stand out. I think using white shading instead, or removing the shading altogether and making the colors more vibrant, would have looked better.
Aside from that, I gave it a 1 for seriousness because it doesn’t comply with the rule requiring the game to be submitted in HTML.