Tekkōki Mikazuki is a 2000 Japanese tokusatsu television series created and directed by Keita Amemiya, written by Toshiki Inoue, and distributed by Media Factory. The series aired on Fuji TV from October 23, 2000, to March 24, 2001, although only for six episodes, and has since been released in a DVD box set on February 5, 2010.
 The series features several groups utilizing giant robots, including the titular Mikazuki (lit. “crescent moon” (三日月, mikazuki)), to fight monsters born of human trauma known as Idom (イドム, Idomu).
The following is a list of various mecha from the 2001 tokusatsu series Tekkouki Mikazuki.
The first mysterious giant, piloted by Kazeo Yusa. Powers include strength, firing powerful energy beams from the hands, erecting an invisible force field, summoning a pair of giant energy hands, high jumping, teleportation, and turning into Gai mode. In Gai mode it can fly very fast, convert its fist beams into a a slicing energy crescent, spawn an energy sword, and regenerate dismembered limbs.
The second mysterious giant, piloted by Yuki Ninomiya. Powers include eye energy beams, absorbing Tekkouki Mikazuki into itself, and had a bestial form that can emit lightning from the arms and summon giant swirling blades around itself.
After Shingetsu absorbs Tekkouki Mikazuki into itself it become a much larger giant machine. In this form it can fly at super sonic speeds, emit lightning from its body that can destroy mountains with each strike, and can pull the moon toward Earth.