Superman 2 - Specter Edition, a title often found on ROM sites, is not an officially released game. Its origins and developers are obscure, making its gameplay and background difficult to precisely define. It appears to be a fan-made or unauthorized project, often circulating within the NES homebrew community. More information is needed to provide accurate historical and gameplay details. It's worth noting that many such unlicensed games exist, offering variations and modifications to original titles, existing primarily in ROM distribution.

Superman 2 - Specter Edition

Super Yume Kojo (Japan) (Pirate)