PSP game Resistance: Retribution has been rated for PS4 and PS5 | VGC
Resistance: Retribution (2009) PSP box cover art - MobyGames
Resistance Retribution for Sony PSP | TVGC — The Video Game Company
Resistance - Retribution ROM - PSP Download - Emulator Games
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!
E3 2008: Hands on with Resistance: Retribution on PSP | Pocket Gamer