Transformers DS review at 1-up.

"Here we have the best game based on the Transformers movie, though that's not saying a whole lot. Transformers: Autobots and Transformers: Decepticons are basically the same type of game found on all the consoles and the PSP. You roam around a few largeish levels looking for your next mission, doing the odd side quest, and bringing mass amounts of pain to your foes.

So far, the DS games are no better than their console/PSP counterparts."

Full Source: 1-up