As an action game this is definitely not a good game because it does not quite make sense to solely require a player to do precise jumping. But as a music game, it's ok. I do see the creativity of merging music and action, I don't think it is a good merge though. 3/5.
I find it very hard to play with the circular arrangement of the input points. It's biggest problem is it is hard to tell which note comes earlier and which comes later. This isn't a good game until the circular arrangement is changed back to the classic parallel arrangement.
 "Epic Coaster"){kind=icon}
 "Take a Walk"){kind=icon}
 "Blockage"){kind=icon}
 "Shadow Snake"){kind=icon}
 "Punk-o-matic 2"){kind=icon}
 "Noggins"){kind=icon}
 "PixEvo - The Fountain"){kind=icon}
 "Inferno"){kind=icon}
 "IQ Ball"){kind=icon}
 "The Enchanted Cave"){kind=icon}
 "Hello Worlds!"){kind=icon}
 "Robot Wants Puppy"){kind=icon}
 "Viricide"){kind=icon}
 "Atomic Puzzle"){kind=icon}
 "Neon Rider"){kind=icon}
 "RoboBlast"){kind=icon}
 "the Flood Runner 2"){kind=icon}
 "Homerun In Berzerk Land: Berzerk Ball"){kind=icon}
 "Connect It"){kind=icon}
 "Help! It's the Unfinished Shadow Game"){kind=icon}