Resistance: Retribution for PSP is going offline in May - Polygon
Resistance: Retribution - Walmart.com
Resistance Retribution - Sony PSP | Disc Plus – Gameroom
Bend Studio on Twitter: "It's been 12 years since #Resistance: Retribution came out on the PSP! Featuring an original story, multiplayer, and connectivity with Resistance 2 on the PS3! Happy Birthday, R:R!
Resistance: Retribution (video game, third-person shooter) reviews & ratings - Glitchwave video games database
Resistance - Retribution ROM - PSP Download - Emulator Games