I am now getting better at invisible Tetris, got enough to advance my grade by 5 in the credits roll (m7 to MV)
The game here is NullpoMino. Mode: Speed Mania 3. MasterV is the fourth highest rank, followed by MasterK, Master and M9 (my previous record grade) and preceded by MasterO, MasterM and Grand Master (obtain MasterM 4 times first)
