Phelios

Phelios is a 1989 arcade scrolling shooter video game developed and published by Namco exclusively in Japan. Loosely based on elements from Greek mythology, it follows the sun god Apollo, mounted atop the winged horse Pegasus, fighting through various locales as they attempt to rescue the moon goddess Artemis from the titan Typhon. The gameplay is based around a series of vertically scrolling levels, which are split up into sections and contain enemies and bosses that must be dealt with in order to progress. Additionally, players can charge up their shots in order to deal more damage to foes.

Phelios later received a port for the Sega Genesis in 1990, which marked the first time that the game was released worldwide.