Gigas (both games)
Gigas
Manufacturer: Sega, 1986
Description:
Sega's own addition to the Breakout-style market, coming soon after
Taito's Arkanoid
did.
Gigas Mark II
Manufacturer: Sega, 1986
Description:
An enhanced upgrade of the main game, with slightly different
graphics, and the paddle can vibrate when hit by the ball. It came
out soon after the first game.
Note:
There may be a third game, but no clues as to whether it was
released.