Akihabara - Pure Beat was just released on Steam as a free DLC to Akihabara - Feel the Rhythm, the unique combination of puzzle and rhythm released last winter.
Pure Beat adds an entirely new game mode, removing all the puzzle aspects and instead focuses solely on the timing of the beat, in a classic rhythm game style. It also features a new online scoreboard, new achievements, and new personal challenges. Can you 100% all tracks?
Link to the game - http://store.steampowered.com/app/587980/
Link to the original game - http://store.steampowered.com/app/565660/
Official site - jm-j.com/akihabara
For more info, email at firstname.lastname@example.org , or send a note on twitter @JMartenJ