Giant Sombrero Droids

Giant Sombrero Droids were huge robots and bipedal Battle Walkers that wore evil sombreros, got sharp claws for stabbing and laser eyes to challenge the threat of Superion, Defensor, Omega Supreme and other big Autobots.

At the end of the Transformers Wars the last Giant Sombrero Droids were eradicated to prevent them from threatening the Combiners and other big autobots.

Dark Future
In Darth Grievous's evil vision of the Future the Giant Sombrero droids helped eradicate the rest of the Autobots and bring an end to the Transformers Race once and for all. After the last autobot dies the Giant Sombero Droids guarded the Cocoons and Darth Grievous's chrysalis from future threats.