Might Kaiser is a non-sentient robot that is piloted by Maito Senpuuji, formed from the Drill Express Combination of Drill Express and Kaiser Machines, along with the backpack and chest parts stored on the Kaiser Carrier. Might Kaiser can then combine with Might Gaine to form Great Might Gaine. It was piloted for once by Mitsuhiko Hamada in episode 31.
During Episode 24, Maito had to combat Hiryuu with only his Might Wing available. He initially managed to strike a few shots but was eventually put on the run. As the Might Wing was about to get blasted by Hiryuu's missiles, the Drill Express arrived just in time, with Maito transferring his cockpit from Might Wing to the Drill Express, he then ordered the combination command to form Might Kaiser and destroyed Hiryuu in combat later on with his Drill Crusher, forcing Joe to escape.