Gigandes © 1990 East Technology.
A horizontal shooter with a twist. If you die, you get to keep your weapons and power-ups, but at the beginning of each stage you lose everything.
Taito X System hardware
Main CPU : Motorola 68000 (@ 8 Mhz), Zilog Z80 (@ 4 Mhz)
Sound Chips : Yamaha YM2610 (@ 8 Mhz)
Players : 2
Control : 8-way joystick
Buttons : 3
Even if the titlescreen says 1989 (development year), Gigandes was released in February 1990.
The Japanese version has a different level order.