The 3rd Birthday (Japanese: ザ・サード バースデイ, Hepburn: Za Sādo Bāsudei) is a third-person role-playing shooter co-developed by Square Enix and HexaDrive, and published by Square Enix for the PlayStation Portable. It was released in 2010 in Japan and 2011 in North America and Europe. The game is both the third entry in the Parasite Eve video game series, based on the titular Japanese novel, and a spin-off, having only a loose connection to events from past games.