This game is for everybody. Even a 3-year old can play. Just move two balls of the same color and size to create a new one; No math is required. You win after you get to the black hole level, and there is also an optional bonus round.

About the name: scientists say that all the marvelous elements in our Universe were created by a fusion process after the Big Bang. This game essentially simulates that process - getting bigger elements (balls) from combining the smaller ones.