Syvalion

is an arcade video game released by Taito in 1988. The player controls a metal dragon with shooter gameplay. This game was designed by Fukio Mitsuji, creator of Bubble Bobble.

It was re-released for PC, PS2 and Xbox as a part of Taito Legends 2 in 2006.

Trivia
In the Taito game Darius Burst the boss named Dark Helios changes form and appears to be the metal dragon.