Tetris 2 + Bombliss was directed by Koichi Nakamura and produced by Tsunekazu Ishihara. One mode, “Bombliss”, features bomb blocks that destroy surrounding blocks when a line is completed. Bombliss uses the gravity algorithm to re-arrange the stage after an explosion has destroyed some blocks. A “Tetris C” mode automatically raises the playfield one level after a certain number of blocks are used.
[Source: wikipedia.org]