Here's an actually USEFUL review!
Here's why people are voting low:
-Some of the notes are the same color as the floor tiles, making them impossible to dodge
-The dance moves, while a good idea, were VERY unresponsive (each time I wanted to do Titan Whatever, I had to roll dsa about 10 times) and about 90% of the time I tried to do the vcx move, I ended up doing cx and ruining my combo
-Like somebody else said, diagonal moving would be nice
-After fixing the dance moves, add more. Make them more complex or have special effects
-There should be something beyond dodging notes and doing dance moves. The beacons were a decent idea, but it was much more rewarding to just do dance moves in the back column instead of braving the stream of notes for a beacon
Besides those things, I liked the game's novel approach. I tried and failed to beat level 1 about three times.