The PlayStation Store had some noteworthy releases in February: Explodemon, Stacking,Bionic Commando Rearmed 2. But none of these new releases managed to chart in PSN's monthly sales numbers. Instead, you'll see some familiar names on the top 5 list, includingAngry Birds, which continues its second month of bestselling sales.
  1. Angry Birds
  2. Plants vs. Zombies
  3. Tetris
  4. Pac-Man Championship Edition DX
  5. Mortal Kombat II
In addition to Angry Birds, the appearance of a PopCap game, a Tetris game, and a Pac-Man game tell us that casual games are key to making your way to the top of the PlayStation Network.

http://www.joystiq.com/2011/03/08/an...n-in-february/