Set in the years 2004–2005 of the Japanese Generation 1 continuity, it tells the tale of a conflict between the Cybertrons and Destrons in which a set of dimensional fissures known as the Blastizone brings forth characters from across time and space to the present day on Earth, serving as a big crossover event between Generation 1, Beast Wars, Victory, Beast Wars II, and more, in honor of the Transformers brand's 20th anniversary. 
 
The series was published online through Takara's official website from 2004 to 2005, for a total of thirteen chapters. Each consisted of two pages and accompanying prose that expanded the comics' story. Being the longest-running of the Robotmasters fiction, the online chapters told the majority of the series's story and was the only one to see it through to a proper conclusion. Additionally, two physical comics, each four pages at length, were also published in catalogs packaged with the Robotmasters toys, and served as complementary in-between chapters to the online comic. 
 
(Source: TFWiki, edited)

Fleeing from the war that has raged on the planet Cybertron for millions of years, the heroic Autobots led by Optimus Prime encounter a surprise attack by the evil Decepticons led by Megatron. The ensuing melee aboard the Autobot ship ends when the ship crashes on a volcano. Four million years later, an earthquake reactivates the ship`s computer and resurrects both the Autobots and Decepticons, resuming the great war of the Transformers. 
(Source: AniDB)

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Starting off as 4koma and published online to promote the titular Transformers Legends toyline, with special Bonus Edition (出張版 Shutchōban) chapters of the comic packed with the toys themselves, it Initially showcased the misadventures of the Beast Wars cast re-imagined as adult Transformers fans, before eventually taking a more story-driven approach and attempting to connect all the entries of the Japanese Generation 1 anime and manga continuity into one storyline. 

Heavily marketed towards adult collectors and otaku in the face of the brand's dwindling popularity with children after TakaraTomy's largely unsuccessful first attempt in the mid-2000s, it attempted to change the image of the Transformers franchise, with much more "adult", often ecchi-filled humour and numerous references to fan culture.
 
Ulltimately concluded when TakaraTomy began a brand unification with Hasbro starting with Power of the Primes, deciding to mainly sell Hasbro toys as is with minimal changes to packaging. It was eventually succeeded by the more action-oriented Generations Selects Special Comic promoting Hasbro and TakaraTomy's joint Generations Selects imprint. (Source: TFwiki, edited)

Tie-in manga for Hasbro and Takara's Kre-O blocks Transformers product line. The story follows various comedic shenanigans involving Transformers Kre-O sets and figurines, at times retelling the events of Transformers Generation 1 anime's episodes.
 
Note: Chapter count includes a prologue chapter and a special chapter included in the product catalog.

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