Thanks for playing :D. About the arrow keys sync, that unfortunately was a problem with the time that we have to make the game… we created a “music creator” (you can find in the scenes/_meta) to generate a JSON with the arrow and the time of the note, and we dint had time to fix the sync manually (changing the JSON), maybe after the reviews end I will fix that :P
And in the future, if we do another rhythm game (or if we have time to fix the current xD), we will be looking forward to implement your tips, thanks very much :3