Blast bugs were living projectiles, specifically biots, utilized as weapons by the Yuuzhan Vong. Sharing ancestry with the thud bug, the blast bug, like its relative, was bio-engineered from a sparkbee. However, differing from both thud bugs and razor bugs, the blast bug served as the Yuuzhan Vong's equivalent to a homing missile. Detonating upon impact with its intended target, the blast bug's explosion would propel the victim violently, inflict significant burn injuries, and potentially penetrate protective plating. For an unarmored Human caught within the blast radius, the likelihood of surviving the encounter was minimal.