The classic retro shooter comes to the PlayStationVita system. Better than ever before!• 60 frames per second native resolution visuals• Improved graphical effects• Enhanced lighting and particle systems - bigger guns even bigger explosions• Better radar• New easier to fly 'anti-grav' space ship added• Remixed soundtrack by CoLDSToRAGEGet your retro on and rid the galaxy of the alien infestation!Some functions and features may not be available on PlayStation TV.