We meet again, Megatron!
—Tobot X, speaking to Megatron
Tobot X is the second super-mech action-hero robot-warrior of doom. He is also the founding member and leader of the Tobots. Many believe he is the greatest foe of Megatron and the Decepticons, but this is not true. Tobot X is actually just in it for the explosions. In reality, he really couldn't care less about "Megacon" and his "Deceptasomethings". Tobot X is, however, the star of Tobot.
Tobot X would later receive an Evolution, then an Adventure upgrade. In his original form, he can combine with other Tobots to form Tobot Titan or Tobot Tritan, and in his Adventure form, he forms part of Tobot Deltatron or Giga 7 to kill and destroy the Teletubby Zeppelin were Tinky Winky, Dipsy, Laa-Laa, Po, the Boohbahs, Fireman Sam, Brawl, Swindle, Vortex, Blast Off and Onslaught.
Tobot X is also one of the five founding members of the Pepsi Republic, led by a powerful being known as Pepsiman.