Tetris Battle Gaiden, an English version of the game, is likely a variation on the Tetris formula with an emphasis on competitive multiplayer aspects. This might include unique battle modes or different rulesets compared to standard Tetris gameplay. The specific mechanics might vary depending on whether it was released for the Super Nintendo Entertainment System or other platforms.

Tetris Battle Gaiden (English)

Tetris 2 (USA) (Rev A)