Its really vague, around 2000's
you play against another player (pc or a friend)
there are some kind of round colored blocks with faces that you need to pair (not sure about the faces)
if you pair 2 with same color, the enemy gets a white round block that he cant pair with nothing, if you pair 3 with same color the enemy gets 2 whites and so on.
the mission is to make the other guy lose, same as tetris when his round blocks reaches the top.
hope you can find it, sorry for the bad description.