Tetris has competitive elements to it, for sure, especially post-Battle Gaiden, but at the time of its release, the emphasis was much more on scoring and besting your past self. Attempting to survive as long as possible, with the \u201Cclock\u201D of increasing speeds and heightened difficulty counting down to your inevitable demise. Tetris Battle Gaiden, though, made the focal point, well, battles. The game doesn\u2019t even keep track of your score, for one, with the emphasis being entirely on surviving for longer than your opponent, a fate you can attempt to ensure by constantly attacking them with the powers at your disposal.