Chuck's Reviews Transformers Bot Bots Ruckus Rally Outta Controller and Racer-Roni
 

While these are nice sets and I enjoy the larger transforming vehicles, the complexity of getting parts to move on most of the Bot Bots makes it very hard for me to recommend them for smaller hands. Of the two I prefer the Outta Controller set more, just have a spudger handy.

http://www.youtube.com/watch?v=1WK4yb018KE