There are a few things Ngmoco could improve on, but honestly not many. The game ran well on my iPhone with the 2.2 software update, though occasional flickering and delays made me wonder if the program was about to crash. In these cases, the application seemed to right itself without incident.

Topple is fun, imaginative, and appealing, especially for casual gamers looking to pass 10 or 15 minutes of time.

Topple is compatible with any iPhone or iPod touch running the iPhone 2.1 software update.

[Chris Barylick is a Macworld contributor who's kind of glad the wooden blocks from his childhood never made angry or contented faces as he built awesome fortresses out of them.]