When the Decepticons attempted to seize the power of the Plasma Energy Chamber in 2007, the Autobots intervened and aborted the opening. However a blast of energy struck the ship sending their shuttle out of control towards a distant planet named Nebulos. Due to the Autobots possessing the key to the Plasma Energy Chamber, Galvatron ordered Cyclonus, Triggerhappy and the other future Head/Targetmasters to pursue them.
The Decepticons managed to capture six Autobots, but were defeated by the Autobot Headmasters during a rescue attempt. The Decepticons were then captured themselves by the Hive, who sought to replicate the Headmaster process with them, but Cyclonus was able to bargain them down to taking only the heads of the animal-based Decepticons, offering up the weapons of the others as alternatives. Using Nebulan technology, the guns were engineered into a transforming exo-suits which were donned by five members of the Hive, creating the Targetmasters, giving their Transformer wielders ten times the accuracy and firepower. Triggerhappy was partnered with Blowpipe.
Triggerhappy himself did not get much character development. He was another foot soldier with a habit of frequently cackling during battle.