Puzzled at how starscream used his clone to cheat autobots. Did starscream used some time-warp trick to cheat autobots and broke into bot-base? Why Optimus told Arcee to close the ground-bridge so that SS left the bot-base with 3 keys? When SS was teleported back to the spot where his clone was, the autobots movements were very slow (time warp I think), but he plunged into another portal which Optimus was not quick enough to follow into. How did SS got the second portal?
He used it as a decoy so they could be distracted by it while he went into the base. He used red energon, which could count as a "time-warp" trick. So they could try not letting him get out of the base, and/or so he couldn't kill the Autobots w/ the extra power and time he had. He used his remote to open the ground bridge to his base.