Gyrodine © 1984 Crux.
A vertically scrolling shoot 'em up.
Main CPU : (2x) Zilog Z80
Sound Chips : (2x) General Instrument AY8910
Players : 2
Control : 8-way joystick
Buttons : 2
Gyrodine was released in July 1984. It was made by Crux, which was started by former Orca staff. Staff from Crux moved on to Toaplan.
The game is also known as Buzzard.
Nintendo Famicom (mar.13, 1986) "Gyrodine [Model TFC-GD]" 
(1986)