Post your essential (favourite) Playstation Portable games in this topic and they'll be added to the list, for others to refer to when deciding which game to play.
If there is a game already on the list that you think should not be there let me know and it'll have a point removed (so if there are more negative than positive votes then the game will be removed entirely off the list).
You may also recommend some more games in a future post but: (1) you must not repeat any game you have already mentioned and (2) you must make a new post, do NOT edit your previous post as it may not be seen.
((UPDATE)) Please don't include any HOMEBREW or PSX/1 games here, other lists are available for such games in their respective threads. Thank You.
Essential Games List [10+ votes]
Burnout Legends
Castlevania: The Dracula X Chronicles
Crisis Core: Final Fantasy VII
Daxter
Disgaea: Afternoon of Darkness
DJ Max Portable (series)
Final Fantasy Tactics: The War Of The Lions
God of War: Chains of Olympus
Grand Theft Auto: Liberty City Stories / Vice City Stories
Jeanne D'Arc
Killzone: Liberation
Loco Roco
Lumines 1&2
Megaman Maverick Hunter X
Megaman Powered Up
Metal Gear Solid Portable Ops / Plus
Monster Hunter (series)
Patapon (series)
Syphon Filter (series)
Tekken - Dark Resurrection
Wipeout Pure / Pulse
Recommended Games List [5+ votes]
Archer Maclean's Mercury
Bleach Heat The Soul Trilogy
Burnout Dominator
Crush
Dissidia Final Fantasy
Every Extend Extra
Exit (series)
Guilty Gear Judgment
Kidou Senshi Gundam: Gundam VS Gundam
Lemmings
Me and my Katamari
Medal of Honor: Heroes 1/2
Metal Gear Acid! 1&2
Puzzle Quest: Challenge of the Warlords
Ratchet and Clank - Size Matters
Ridge Racer 1&2
Star Ocean: The First Departure
Street Fighter Alpha 3 MAX
Tales of Eternia
Tales of The World: Radiant Mythology
Ultimate Ghosts N Goblins
Valkyrie Profile Lenneth
WTF
Yu-Gi-Oh (series)
Noteworthy Games List [3+ Votes]
Ace Combat X: Skies of Deception
Astonishia Story (series)
Brave Story: New Traveler
Breath of Fire III
Darkstalkers Chronicle - The Chaos Tower
Dragonball Z: Shin Budokai
Dungeon Siege: Throne of Agony
F1 2006
Field Commander
Gripshift
Hot Shots Golf
Juiced 1/2
Metal Slug Anthology
Namco Museum 1&2
Naruto Ultimate Ninja Heroes 1 and 2
Need for Speed: Most Wanted/Carbon/Underground Rivals
Power Stone Collection
Pursuit Force (series)
Prince of Persia Revelations
Pro Evolution Soccer / Winning Eleven (series)
Pump It Up Exceed Portable
Space Invaders Extreme
Sega Virtua Tennis World Tour
SSX On Tour
Star Wars Battlefront: Renegade Squadron
Star Wars Battlefront II
Taiko no Tatsujin Portable 1/2
Tomb Raider (series)
Wild Arms XF
Worms: Open Warfare 2
WWE Smackdown vs. Raw 2006
Other Games List [