It´s an SFC block puzzler, which takes pages from the books of Columns and Puyo Puyo (which both take pages from Tetris´ book.) You stack up the blocks, clearing blocks with the same type icons, dealing damage to your opponent until one of you is killed. It´s a pretty fun game, I definately recommend you checking it out if you´re at all a fan of puzzle games :)
This project "Dossun! Stone Battle" page has been viewed 34002 times so far.