Oh man oh man, I had so much fun with this! Here's the quick rundown of my thoughts:
PROS - A breath of fresh air in the rhythm game genre - Absolutely stunning pixel art and animations - Vocaloid music? With actual legit Japanese lyrics? Wow, that couldn't have been easy to do - Well-calibrated input latency, very important for a rhythm game (tested with both keyboard and controller) - Hitsounds are nice and meaty and provide good feedback (Dunking is the best hitsound ever) - So, so much potential here. You could completely take this and develop it into a small rhythm game, it'd fit right into the 3DS eShop or the like
CONS - Just a couple of quality-of-life things that would be nice to have for a rhythm game (combo counter and score, different accuracy scores instead of just hit/miss, having bar lines (maybe painted lines on the floor?) to help with reading the rhythm) - Not much to do with the theme
For full criticism and breakdown of ranking, as well as candid reactions to gameplay, do check out the video~
https://www.youtube.com/watch?v=D_ZUTIEdkJw