Did anyone look through all the prisons in Kaon prison break?
Arcee is in one look at her "nails" and Jazz is doing push-ups in another.
They also are there after you free the prisoners.
When you free them you'll notice you're directly above the prisons look through cybertronian glass and you'll see Arcee assisting other Autobots and Jazz will be waving at you.
They appear in every room all the way to the transport docking bay.
Fun little easter egg.