Definitely one of my favorites so far! The level difficulty was well done, and I appreciated the accessibility options (even though I managed to finish without using them). Really nice simple introduction that showed the controls. Everything looked great and the music is a legitimate bop. The only tiny thing I wished for is a health indicator for the boss, for a long time I couldn't tell if I was actually doing anything to him or not.
My kid watched me play this one and is requesting a full version. :)