A tetrisoid puzzle game by Capcom. Connect together blocks of the same colour and detonate them using trigger blocks. If this sounds familiar, it's because Capcom later took the basic game mechanics and added some Street Fighter gloss, calling the game Super Puzzle Fighter 2. The original is quite addictive, if not quite as frenetic as Puzzle Fighter. The graphics are quite polished, but the game seems so minimalistic compared to their big titles of the time that it must've been some kind of quota filler. Or possibly a response to the other puzzle games that were becoming popular in arcades at the time.