The CRL-98 Pyro-Buster is a fire-rescue labor manufactured by Hishii Heavy Industries (HHI). It was developed in response to a need for specialized firefighting equipment as construction projects became more complex due to the advent of the Labor as a construction implement. The Pyro-Buster is the first known dedicated fire-rescue labor, and appears to share a basic architecture with the HL-98 "Hercules 21" construction labor.
The CRL-98 was purpose-developed as a firefighting labor to support regular units at high-risk fires. Its similarity to construction labors of the day minimized the training time required to prepare firefighters for its operation, and it is able to use its versatile equipment to act as a force multiplier when limited personnel are available.