Super Puzzle Fighter II Turbo

Puzzle Fighter is a puzzle game which is similar to the Sega arcade game Baku Baku Animal. As in the Capcom arcade game Pnickies, the player controls pairs of blocks ("gems" in game parlance) that drop into a pit-like playfield. In Puzzle Fighter, however, gems can only be eliminated by coming into contact with a Crash Gem of the same color, which eliminates all adjacent gems of that color. (wikipedia.org)