Groundbreaker is a fictional character

Fictional character

A character is the representation of a person in a narrative work of art . Derived from the ancient Greek word kharaktêr , the earliest use in English, in this sense, dates from the Restoration, although it became widely used after its appearance in Tom Jones in 1749. From this, the sense of...

 from the Transformers

Transformers

A transformer is a device that transfers electrical energy from one circuit to another by magnetic coupling.Transformer may also refer to:* ASUS Eee Pad Transformer, an Android 3.2 Honeycomb tablet computer manufacturer by Asus...

 series. He is an Autobot Pretender.

Transformers: Generation 1

Groundbreaker is a Pretender Autobot who turns into a rocket car which can reach speed of mach 1. He his a mech of action who wants everything done now and is happy to be the one to do it. He is also brutally honest. His shell has a laser shield which can protect him from all but the most powerful attacks, but it also drains a lot of his power to keep the shield up.

Marvel Comics

Although not seen or mentioned directly, Groundbreaker was among the Autobots who joined Fortress Maximus

Fortress Maximus

Fortress Maximus is the name of several fictional characters from several of the various Transformers universes. Fortress Maximus appeared in the season 4 finale of the US Transformers animated series voiced by Stephen Keener. He was one of the stars of the Japanese Transformers: Headmasters...

 in leaving Cybertron

Cybertron

Cybertron is a fictional planet, the homeworld of the Transformers in the various fictional incarnations of the metaseries and toyline by Hasbro. In the Japanese series, the planet is referred to as "Cybertron" pronounced as セイバートロン Seibātoron...

 for the planet Nebulos (Transformers: Headmasters #1). Unfortunately, they were followed to Nebulos by the Decepticon

Decepticon

The Decepticons are usually depicted as the antagonists in the fictional universes of the Transformers stoyline and related comics and cartoons, and the enemies of the Autobots and the University of California Davis Aggies...

s under Scorponok

Scorponok

Scorponok is the name shared by several fictional characters in the various Transformers universes. All are Decepticons that turn into Scorpoins.- Transformers: Generation 1:...

, leading war to break out once more. Fortress Maximus's band left Nebulos for the planet Earth, with the Decepticons in close pursuit. (Transformers: Headmasters #4).

When Brainstorm needed subjects to duplicate a Decepticon Pretender experiment, Groundbreaker and five other Autobots volunteered and became the Autobot Pretenders. They fought the Decepticon Pretenders with the help of Optimus Prime

Optimus Prime

Optimus Prime is a fictional character from the Transformers franchise. Prime is the leader of the autobots, a faction of transforming robots from the planet Cybertron. The autobots are constantly waging war against a rival faction of transforming robots called Decepticons...

 and Goldbug

Bumblebee (Transformers)

Bumblebee is the name of several fictional characters from the various Transformers universes. In most incarnations, Bumblebee is a small, yellow Autobot with the altmode of a compact car.- Transformers: Generation 1 :...

 (Transformers #40). They soundly defeated their Decepticon Pretender rivals, who initially thought they were simply large humans.

Dreamwave Productions

Groundbreaker did not appear in any fiction from Dreamwave Productions

Dreamwave Productions

Dreamwave Productions was a Canadian art design studio and comic book publisher founded in 1996 and is best known for their multiple Transformers comic book series...

, but did get a one page biography in their "More Than Meets The Eye" series.

IDW Publishing

In "Stormbringer Part 1" Groundbreaker is stationed on board the Autobot Orbital Command Hub, eagerly awaiting the call to battle.

Cloudburst

Cloudburst (Transformers)

Cloudburst is a fictional character from the Transformers series. He turns into a jet and has a shell that looked like an armored human. He shouldn't be confused with Phoenix, a Japanese Transformer who shares the same toy.-Transformers: Generation 1:...

, Groundbreaker, Landmine

Landmine (Transformers)

Landmine is the name to several fictional characters in the various Transformers universes. He shouldn't be confused with Lander.-Transformers: Generation 1:...

 and Waverider

Waverider (Transformers)

Waverider is an fictional character from the Transformers seriese. He is an Autobot Pretender who turns into a boat.-Transformers: Generation 1:...

 appear in Spotlight: Hardhead investigating the Benzuli Expanse and reporting to Jetfire

Jetfire

Jetfire is the name of several fictional characters from the Transformers universes. He is nearly always depicted as an Autobot with jet or space shuttle alternate mode.-Transformers: Generation 1:...

.

Toys

• Generation 1 Pretender Groundbreaker (1988)

A new mold. Groundbreaker came with a Pretender shell. The shell looked like a human male in an orange suit which looked like a lion's head.