[BMS] U9 (BPM 908 finish) - Hard Clear.

Played with beatoraja. I tried with LR2 firstly, but LR2 causes BADs too easily and doesn't tell which random pattern was chosen in advance(It can be noticed through min, max bpm display in beatoraja). So I ran away to beatoraja. Aside from this, beatoraja has a remarkable advantage related with this bms. Beatoraja doesn't handle negetive BPM so if the negetive BPM pattern is chosen, the last part just flows normally without bpm change.