Lots more features planned, but this Superlite version release is for the Stencyl Game Jam for June. Eurhythmia is (or will eventually be, rather) a Flash rhythm game showcasing the talent of indie game musicians with procedurally-generated notemaps. In later versions, players will be able to play Eurhythmia with any of the music on their own computer or portable music player by syncing the game engine up with the music's beats per minute.
Known bug: Sometimes a successful hit on a note won't actually kill the note, resulting in it moving up to the top of the screen and killing your multiplier. Trying to fix this.