|This game from Zynga (yeah, the FarmVille guys) is a unique spin on the Tetris idea. Instead of making full rows to pop the balls, you stack them into groups of the right number going across or vertically.
What now? OK, let me explain. See the "4" ball in that image? In order for that ball to pop, you need it to be in a row or column of 4 balls. It's currently in a column of 2 and a row of 7. See? Simple to play, hard to master.
|It's not all so easy for long though. Every so often, a row of gray balls will appear on the bottom row, shoving everything upward. If a ball gets to the top of the box, you lose!|