Seicross, another arcade game of unknown origin, requires further investigation to determine its gameplay, background, and developers. Its name offers little insight without additional context. The title may indicate a game involving crossing or traversing different worlds or areas, but its genre remains uncertain without more information. More details about its release date, region, and gameplay mechanics would be needed for a complete introduction.

Seicross

SegaSonic The Hedgehog (Japan, prototype)