The Create-a-bot in revenge of the Fallen is the main character in the DS version Transformers: Revenge of the Fallen. He crashlanded in São Paulo. After the autobots found out, Optimus Prime went to find him in his protoform state. After Starscream shows up Ratchet guides Create-A-Bot to a parking lot where he can scan 3 forms.[but only gets to keep 1] Then he meets Bumblebee and Ironhide. After he talks to them he has to defeat the Decepticon Create-A-Bot.
In this version Starscream comes and finds him. When Optimus shows up Soundwave guides him to Grindor and Sideways after Create-A-Bot scans his form. Then Create-A-Bot defeats the Autobot Create-A-Bot.