Released in 1989, Drillhorn transforms into a four-treaded drill-tank. He also forms the right leg to the group's combined form Liokaiser. His packed-in partner Rhinobreast fits securely on Drillhorn's chest in either mode. Drillhorn was purchased from an online seller in Japan, and comes in perfect condition. I shall be keeping a lookout for his other mates to unite the Breastforce.