Exzisus © 1987 Taito.
The player must use an 8-way joystick to take control of a space astronaut named Exzisus with two buttons to make him fire shots at and drop missiles on enemies, and launch his bird and dog-like robots at them. There are also several different powerups that he can collect to aid him in his mission:
L (Laser Light Blaster)
D (Disruption or Destruction depending upon the palette)
M (Missile)
F (Full Automatic)
A (Aerodynamic Power)
O (Option)
and, in some versions of the title, B (Barrier). When hit, Exzisus returns back to his regular humanoid form.
Game ID : B23
Main CPU : (4x) Z80
Sound Chips : Yamaha YM2151
Control : 8-way joystick
Buttons : 2
It was also released as a conversion kit; "Exzisus [Conversion Kit]".
Exzisus was released in August 1987 in Japan.
Export release: "Exzisus [Export]" (Licensed to Tad)
The design of the player spaceship is from Taito's famous shoot-em up, Darius.
Microsoft XBOX (Oct. 14, 2005) Taito Legends Sony PS2 (Oct. 14, 2005) Taito Legends [Model SLES-53438] 
Microsoft XBOX (Oct. 25, 2005) Taito Legends Sony PS2 (Oct. 25, 2005) Taito Legends [Model SLUS-21122] 
Sony PlayStation 2 (jul.18, 2006) Taito Legends [Model SLKA-15056] 
Sony PS2 (Jan. 25, 2007) Taito Memories II Joukan [Model SLPM-66649] PC [MS Windows, CD-ROM] (Oct. 14, 2005) Taito Legends PC [MS Windows, CD-ROM] (Nov. 10, 2005) Taito Legends