Digging around in the cover art files for has revealed over a dozen unreleased (and some unannounced) titles. Included among the previously unknown titles are Double Dragon II (Double Dragon Neon was released last month) and Star Wars First Assault.

Other titles — like Toe Jam & Earl, Retro City Rampage, and Karateka — have all been officially confirmed by their publishers. Sega’s HD remake of Nights into Dreams comes out this week, and GamesBeat can confirm the cover art discovered by the hackers is legit.

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via NeoGAF