This is how Bumblebee vs. AU Bumblebee goes in The Solar Flare Legend.
AU Bumblebee: What in the world?
Crash Bandicoot: I don't know about you guys but two Bumblebees? Weird.
Sci-Ryan: My Dalek friend can see this Bee shall I exterminate?
AU Bumblebee: Why have you come here?
Ex-Terminator: We have come here to stop the prophecy that's about to occure any minuet now.
Crash Bandicoot: Before you fight, can you help us stop the prophecy?
AU Bumblebee: What prophecy?