Heavy Unit (ヘビーユニット, Hebii Yunitto?) is a side scrolling shoot-em-up arcade game developed by Kaneko and published by Taito in 1988. It was ported to the PC Engine and Sega Mega Drive by Taito and was released on December 22, 1989. There was also a Mega Drive port by Toho entitled "Heavy Unit: Mega Drive Special" released on December 26, 1990. The player takes control of a star ship that can transform in to a mecha by obtaining a specific type of power up.