His policy towards Earth and its inhabitants were vastly different from Optimus Prime's – instead of viewing them as objects of protection, Grimlock expressed a disdain for humanity, viewing them as an inferior species unworthy of their protection.

Magmatron aimed to send him back to Cybertron, but due to the intervention of Razorbeast, Optimus Minor and Grimlock, Magmatron was sent back to Cybertron instead.

The Autobots agreed, removing the modification lock Grimlock had placed on Blaster and putting it on the Combaticon Blast Off instead.

In order to protect themselves against Energon surges, the Dynobots required alternate modes covered by a layer of synthetic flesh ; Grimlock refused to transform into Ice Age mammals and made the decision to go with dinosaurian forms instead as he thought them more impressive.

Charged with hunting down the petty criminal known as the Mechanic, who had stolen some Autobot equipment, Goldbug and Blaster opt instead to remove themselves from the tyrannical command of then-leader Grimlock.

In order to protect themselves against Energon surges, the Dynobots required alternate modes covered by a layer of synthetic flesh ; Grimlock refused to transform into Ice Age mammals and made the decision to go with dinosaurian forms instead as he thought them more impressive.

A robot named Snarl makes a return in Transformers Animated along with Grimlock and Swoop ; however, he is styled like the Generation 1 Dinobot Slag instead of the Generation 1 Dinobot of the same name, originally meant to be called Slag.

In order to protect themselves against Energon surges, the Dynobots required alternate modes covered by a layer of synthetic flesh ; Grimlock refused to transform into Ice Age mammals and made the decision to go with dinosaur forms instead, as he thought them more impressive.

In order to protect themselves against Energon surges, the Dynobots required alternate modes covered by a layer of synthetic flesh ; Grimlock refused to transform into Ice Age mammals and made the decision to go with dinosaurian forms instead as he thought them more impressive.

In his private thoughts, however, Grimlock considered Optimus Prime too weak to lead, seeking the position for himself.

After an attack by the giant Decepticon Trypticon, Grimlock is chosen to lead them.

Grimlock lead L. S. C.

In a flashback in Maximum Dinobots # 1 Grimlock lead the Dynobots in taking a Decepticon energon silo in Sub-Sector Nine on Cybertron.

Bumblebee, Jazz, and Grimlock follow a lead to VsQz, third moon of the planet Cameron, where they run afoul of both a monstrous creature created by the corrupted Matrix energy, and the mighty Decepticon Pretender, Thunderwing, who defeats them and claimed the Matrix for his own.

In a flashback in Maximum Dinobots # 1 Grimlock lead the Dynobots in taking a Decepticon energon silo in Sub-Sector Nine on Cybertron.

Grimlock lead L. S. C.

In a flashback in Maximum Dinobots # 1 Grimlock lead the Dynobots in taking a Decepticon energon silo in Sub-Sector Nine on Cybertron.

Grimlock lead L. S. C.

In a flashback in Maximum Dinobots # 1 Grimlock lead the Dynobots in taking a Decepticon energon silo in Sub-Sector Nine on Cybertron.

Grimlock is the most fearsome and powerful member of the Dinobots.

Grimlock steadily grew more and more displeased with Optimus Prime's leadership, and eventually broke his Dinobots away from the main Autobot faction.

Grimlock and the Dinobots were destroyed during the battle against Starscream while the villain was super-powered by the Underbase.

Grimlock swore to one day find a way to revive his Dinobots.

Grimlock finally lost patience, stole the bodies of the Dinobots and a shuttle from the Ark, and piloted it to the planet Hydrus Four, where scientists had developed a new fuel called nucleon.

Grimlock was unwilling to subject his Dinobots to anything he would not go through himself, and thus decided to test the fuel on himself first.

Grimlock began to experience brief bursts of immobility, his joints locking, which reached a peak when he became completely paralyzed in Cybertron's wastelands while he and the Dinobots were under attack by monstrous creatures from beneath Cybertron's surface.

Grimlock and the Dinobots were the only ones among the Autobots who saw through the Decepticons ' false pretense of peaceful co-existence and suspected the plan of mass betrayal.

Set in and around the U. S. stories, Grimlock and the Dinobots were the stars of several stories while self-exiled from the other Autobots, including In The National Interest where they tried to help expose the Robo-Master hoax.

The original character profiles ( and the tech specs derived from them ) written by Bob Budiansky and Dan Bobro indicate that Grimlock and the Dinobots were intended to come from Cybertron to Earth like the vast majority of other Transformers.

When Soundwave read his mind and learned of this animosity, Megatron was able to trick Grimlock and the Dinobots into switching sides, attacking and capturing Optimus Prime.

Grimlock and the Dinobots were semi-regularly called into action when the Autobots were faced with challenges that required extra strength, such as the Sub-Atlantican invasion of Washington, D. C., or the Decepticons ' control of the TORQ III supercomputer ; with every piece of help he and his troops gave, Grimlock was never slow to add a scathing remark about the inabilities of the Autobots.

The final straw for Grimlock came when he and the Dinobots were injured in a Decepticon trap at an airfield.

Enraged, Grimlock refused to take orders from Optimus Prime any more, and led the Dinobots away from the Ark.

Brought back to Earth, the Dinobots agreed to follow Prime's order again-until such time as Grimlock did not feel like it.

Also of note, it seemed that, along with the other Dinobots, Grimlock remained in his Dinosaur mode almost exclusively, rarely changing back to his Robot form.

In the second episode, Grimlock was again in action, trying to protect Vector Sigma alongside with two fellow Dinobots and Jazz.

Grimlock was featured in the 1985 Find Your Fate Junior book called Dinobots Strike Back by Casey Todd.

When Bludgeon and his Decepticons were banished after the battle of Klo Grimlock refitted his Decepticon battleship, the Graviton, with weapons and recruited his several Dinobots and Autobots to hunt them down.

The modern Transformers ' first encounter with the Quintessons came in the Earth year 2005 ( during the events of The Transformers: The Movie ), when Hot Rod, Kup and the Dinobots were stranded on the planet and faced Quintesson justice, only able to escape when Grimlock intimidated the Sharkticons into revolting, and Wheelie led the marooned Autobots to a Quintesson ship to allow them to get off the planet.

He was also mentioned in " Grimlock's New Brain ", when Grimlock told the other Dinobots that Omega was away on a mission, forcing him to build a shuttle to investigate Unicron's head.

Upon locating the Dinobots Shockwave firstly engages and defeats Scorponok in battle, and then turns his attentions to Grimlock.

Shockwave opens a space bridge to search the universe for energy to rebuild Cybertron. He soon finds dinosaurs on Earth and later he appllied these forms to a group of Autobots on Cybertron with Grimlock being one of them and calls them Dinobots.