Man, I bet that Level 11 is like the highest level I can make past as Level 12 onwards is already that difficult. Sure, I already made past one of Level 12 songs through Skill Analyzer Level 4 but I still failed the Level 4 sets.
Sound Voltex aside, I also made some minor improvements in SHODAN in Beatmania IIDX. Also, between March 10-11, I also managed to unlock some song by simply playing one of DJ Noriken's songs. I tried the same for DJ Genki's songs but I failed. Maybe next time, I'll try to unlock Close The World but I don't know if I'm gonna clear those Level 8-9 songs or not.
Not to mention that the on-going events were already over by the time I'm in this vacation such as the Cafe De Tran, Tri-Wars and so forth so the game of Beatmania IIDX ended after the QPrologue event and there must be some solution to break the rock on the left next to the enemy holding the song.