Syvalion is a shoot 'em up game where you control a dragon-shaped spaceship divided into several segments. The spaceship can move freely across the screen in all directions and fights off robots, spaceships, and bosses with its fire attack. The fuel meter at the bottom of the screen depletes when using the fire attack, but moving around recharges it. You also need to avoid indestructible obstacles along the way. The segments serve as hit points, and when taking damage, a segment changes color.
Syvalion was released on June 14, 1905, for the Super Nintendo Entertainment System. It has also been included in a compilation called Taito Legends 2 for the PlayStation 2.