Mobage, Inc. has Topple2 (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE for a limited time.

After reaching thousands of downloads, this content packed sequel delivers the same fun on a larger screen! Immerse yourself in 30 levels over 6 Topple worlds that allow you to balance and stack fun and playful Topple blocks using multi-touch and accelerometer controls. Dominate global Mobage leaderboards as you progress through the game.

Challenge your friends to a “stack attack,” racing one another in real-time. No friends near you? With Direct Challenges, you can now send your “ghost” play-through to your friends over the twitter so they can accept your challenge at their convenience!

Enjoy the classic Topple experience, and master the new modes, as well. Upside-down mode inverts gravity for a topsy-turvy play experience. Balance mode lets you weigh two towers against each other. Power Tower mode challenges you to build a power line using conductive blocks. Rescue mode uses your tower building skills to save the precious golden egg.