The following games were initially announced as PlayStation Portable titles, however were subsequently cancelled or postponed indefinitely by developers or publishers.
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^ "Batman Begins (PlayStation Portable)" . Archived from the original on May 16, 2012. Retrieved January 2, 2017 .
^ "Battlefield 2: Modern Combat (PlayStation Portable)" . IGN . Retrieved June 19, 2015 .
^ "Bloodrayne" . IGN . Ziff Davis . April 1, 2005. Retrieved August 14, 2024 .
^ Miller, Greg (August 4, 2008). "Destroy All Humans PSP Cancelled" . IGN . Retrieved 2009-01-14 .
^ Hall, Charlie (August 6, 2014). "Unreleased Duke Nukem discovered in Library of Congress" . Polygon . Vox Media . Retrieved August 6, 2014 .
^ Castro, Juan (August 9, 2006). "Earthworm Jim Hands-on" . IGN . Ziff Davis . Archived from the original on August 12, 2006. Retrieved October 18, 2015 .
^ "PM Studios Brings Gunbird 2 To The PSP" . Kotaku.com. December 17, 2009. Retrieved February 4, 2014 .
^ "Inuyasha: Feudal Combat for Nintendo DS" . ToTheGame. Archived from the original on January 11, 2008. Retrieved December 29, 2015 .
^ "Madagascar: Escape 2 Africa" . GameSpot. Retrieved November 18, 2012 .
^ "TGS 2005: Makai Wars Goes PS3" . IGN . 16 September 2005. Retrieved 7 October 2014 .
^ "Painkiller: Hell Wars for PSP - GameSpot" . Archived from the original on May 24, 2011. Retrieved October 24, 2012 .
^ "Putty Squad Returns In High Resolution!" . System3.com (Press release). Archived from the original on October 9, 2011. Retrieved August 12, 2010 .
^ Reilly, Jim (31 August 2010). "Puzzle Quest 2 Coming to PSP" . IGN .
^ Sliwinski, Alexander (21 July 2011). "Puzzle Quest 2 canceled for PSP" . Engadget .
^ "GameSpy: Rayman Raving Rabbids" . GameSpy. Retrieved January 12, 2020 .
^ Surette, Time. "End of the Road to Sunday" . gamespot.com . CBS Interactive Inc. Retrieved 12 July 2015 .
^ "Force Unleashed II PSP Cancelled" . IGN . August 9, 2010. Retrieved September 6, 2010 .
^ "Sticky Balls PSP" . zee-3.com (Press release). Retrieved January 12, 2020 .
^ Schreier, Jason (May 17, 2016). "Leaked Footage Shows The Cancelled Elder Scrolls: Oblivion Game For PSP [UPDATE: Lawyered]" . Kotaku . Gawker Media.
^ "The Incredibles: Rise of the Underminer (PlayStation Portable)" . Archived from the original on March 8, 2015. Retrieved August 13, 2024 .
^ Reilly, Jim (January 24, 2011). "Thor PSP Canned; 3DS Version Confirmed" . IGN . Ziff Davis. Retrieved December 3, 2018 .
^ "Tornado Alley Pitch: Nine page document featuring the LOOSE CANNON mark as used in a presentation or sales pitch prepared and delivered to a potential customer in July of 2006 for a computer game for multiple platforms" . Retrieved June 22, 2024 .
^ Boyes, Emma (January 9, 2007). "Traxion loses traction" . GameSpot . Retrieved May 21, 2024 .
^ "Ushiro [PSP - Cancelled] - Unseen64" . Unseen64: Beta, Cancelled & Unseen Videogames! . 2012-12-25. Retrieved 2023-09-20 .
^ "Ushiro (lost build of cancelled PlayStation Portable role-playing horror game; 2008) - The Lost Media Wiki" . lostmediawiki.com . Retrieved 2023-09-20 .
^ "Wet (Preview)". Game Informer . No. 174. GameStop . October 2006.