Speaking of Touhou...
All music of Valkyrie Sky is arranged by dBu of Touhou.
It's kind of fascinating for Shmup lovers~!
Valkyrie was popular in Korea for that reason too~
Well, we know the two have something else in common besides for being Shoot 'em up games `-`
About the lag, I have never lagged in the game -yet-. I dc'd a few times, but never lagged.