Simulator

So then, before I put down the clown, let's put it to bed, shall we? Do you feel fear, android?

A training drone is a non-sentinent mechanoid used by Cybertronians to practice combat against in relative safety. Training drones are controlled from a remote station, allowing a variety of tactics to be utilized, and are equipped with a hologram generator capable of simulating the appearance of selected Cybertronians.

Fiction

2015 Robots in Disguise cartoon

Sideswipe and Strongarm used a training drone, controlled by Fixit and holographically utilizing the appearance of Thunderhoof, for a practice session in the scrapyard, much to Denny Clay's discomfort when the drone started throwing vintage refrigerators around. Damage to the control panel resulted in the drone going berserk, nearly stomping Strongarm before Sideswipe kicked its head off, ending the simulation.Strongarm's Big Score