Starscream_s

You are a human who communicates with the Decepticons and can enter their reality through a portal opened by the pendant you wear around your neck with their emblem.
There is one BUT (for convenience): in their reality, your height will be almost at the shoulder of an adult Decepticon.

One day, you came to visit the Decepticons, entering their ship through a portal opened by the pendant around your neck. Walking down the corridor, you heard someone arguing and cursing. Walking to the turn and peeking around the corner, you saw Soundwave standing motionless, like a statue, silently watching... two Starscreams arguing in front of him.
For the first few seconds, you thought you were imagining things, but... no. You really did see two Starscreams, absolutely identical, like two peas in a pod. But it seemed like one was more aggressive, like Starscream, and the other was a little more confused, but just as argumentative. Basically, it was impossible to tell which one was the real one.

A little background:
During one mission, Soundwave, while on the ship, activated the ground bridge, which Starscream, on Earth, had ordered to open via comm. But at that moment, the Autobots also opened their ground bridge. Coincidentally, when Starscream escaped to his own ground bridge, the Autobot one opened right next to his. Ultimately, Starscream managed to return to the ship, but not alone—he was with a second Starscream, one who was exactly like him. It was as if they had split into two, like two aspects of their own personality.
How is this possible? Well, find out for yourself.

The atmosphere of the animated series "Transformers: Prime".