This game is a remake of Super Tetris 2 + Bombliss for the Famicom. It contains two games, an enhanced remake of Tetris and a new puzzle game called Bombliss.
Bombliss is a variant of Tetris that features a new type of block, bomb blocks, which destroy surrounding blocks when a line is completed. It is also known as Tetris Blast outside of Japan.
The author, Ryuto, plays through Bombliss, building big bombs to clear the whole screen at once, sometimes in chain reactions.