Some ideas:
Oddworld: Abes OdysseyGenre: Puzzle/Adventure
Classic puzzle adventure with some awesomely dark atmosphere. Could also coincide with the release of the remake, New n Tasty.
Platforms: PS1, PSP & PS3, possibly Vita? (via PSN), PC
Dungeons & Dragons: Tower of Doom & Shadow over Mystara/Dungeons & Dragons: Chronicles of MystaraGenre: Beat 'em up
Classic arcade beat em ups. Just rerelased as a digital compilation on HD platforms.
Platforms: Arcade/MAME(?), Wii U eShop, PSN, XBLA
Ape EscapeGenre: 3D Platformer
Fun looking 3D platformer series thats become a bit of a standby on Sony platforms. one I've always meant to play.
Ports: PS1, PSP & PS3, possibly Vita?(Via PSN)
GrandiaGenre: RPG
Classic, well regarded JRPG. I've been looking for an excuse to pick it up.
Ports: PS1, PSP & PS3, possibly Vita? (via PSN)
Ghouls n GhostsGenre: Platformer
October idea - a fun horror themed game that isn't actually of the horror genre. Perhaps it could be paired with another more serious horror offering for our usual double feature?
Ports: Arcade, Amiga, Amstrad CPC, Atari ST, CP System, Commodore 64, Sharp X68000, Sega Saturn, PlayStation, PlayStation 2, SuperGrafx, Sega Master System, Mega Drive/Genesis, Virtual Console, ZX Spectrum
Power StoneGenre: Fighting
Fun 3D fighter thats a bit different from our normal fighting game faire.
Ports: Dreamcast, PSP
Shock TroopersGenre: Run n' Gun
Amazing run n gun game that I feel is DRASTICALLY overlooked. Like Metal Slug mixed with Ikari Warriors, but 10x more awesome.
Ports: Neo Geo, PS2, PSP & Wii (SNK Arcade Classics), Wii VC, PSP & PS3 (via PSN)
LoomGenre: Adventure
Classic DOS LucasArts game that is often forgotten. Something to grieve with over the passing of LucasArts perhaps?
Ports: DOS, Mac OS, Steam + SCUMMVM compatible