Cool game! The visuals and sound design were great, and the gameplay felt smooth.
It did become trivially easy at a point, though. Assuming I didn’t stop off before some kind of difficulty spike, I think I could have kept playing forever had I not opted to just let myself die after awhile. I forgot to note my score, but it far surpassed the default top score on the leaderboard. It looked like I may have coincidentally matched its time, though.
I think the main thing the game could use is better enemy AI and variety. Enemies that pose an actual threat, for instance some that could seep your time if they hit you, would make the game more interesting and challenging.
That being said, it was a fun play as it is. Good work!