just came across this game and gave it a try since i do enjoy this mode in dr proper
nice to see more of the ost get charts, although i feel like some of them are a bit too repetitive (just pressing <- and -> in this order for most of the field of hopes and dreams chart was a little disappointing!)
additionally knowing how many of the notes you hit perfectly on the end screen would be a great improvement, and having some more better visual cues for how well you're doing would be nice, since i feel like the particle effect is a little too lowkey (the dr golden note effect does the job quite well in this regard)
also being able to hide the numbers on the side of the lane would be nice, i found them to be a bit too distracting (<- also it's a little unclear what they mean, since a +(number) next to accuracy usually means you're being too fast) (if it's just score i'd suggest replacing it with an accuracy score, like PERFECT/GOOD/MISS etc, since that's more important to track in a rhythm game than the score you're getting)
other than that, i think this is a really good recreation of lightners live, nice