I just remembered this game from a few years back. I see it still has that lag spike. My trick is to play to the music and look ahead. If I keep the rhythm I can at least 95%, the lag doesn't register some of my taps but... still playable with the effects.
The music is ok. I like the game play, makes it seem like its not another arrow-rhythm game. The only thing I would complain about is how for some reason the background was giving me a huge headache, which made me look at only the arrows for the whole time. Other than that everything is just fine.
This is one of my favorite rhythm games, because it's short, difficult when it needs to be, has good music, and is just really fun to play.
lost chapter was HELL!!! but well worth it. my only complaint is a small issue (bug?) that you need to complete 16 achievements to get it, not 15 as said. other then that, this game has stood the test of time well.
It would be a great game if there was no lag because when there is lag the arrows get jumbled together to catch up, please fix this issue so I can give this game the rating it truly deserves.