My guess would be Hardlight for the digital title, but Sega makes so many I'm not entirely sure.
Source: http://www.theverge.com/gaming/2012...ine-playable-games-to-pax-prime-including-oneThe Verge said:Sega is bringing nine playable games to this year's Penny Arcade Expo in Seattle, including one unannounced game.
The full line-up includes:
-Aliens: Colonial Marines
-The Cave
-Hell Year! Wrath of the Dead Rabbit
-Jet Set Radio
-NiGHTS into dreams
-Phantasy Star Online 2
-Sonic Adventure 2
-Sonic & All-Stars Racing Transformed
-an unannounced digital title
The games will be playable from August 31st through to September 2nd at PAX Prime.