PlayStation Portable

Taiko no Tatsujin Portable 1-2
 * A taiko-drumming music game. Clean 2D graphics and addictive gameplay make it a must for any fan of rhythm games.

Kingdom of Paradise
 * A nice early RPG effort with a Chinese theme. Decent combat system and surprisingly nice graphics.

Wipeout Pure/Pulse
 * Both Wipeout games boast great graphics, lots to unlock, and an insane sense of speed.

Metal Gear Ac!d 1-2 
 * Card-based tactics in the MGS universe. It's surprisingly fun if you give it a chance and stop bawwing.

Lumines 1-2
 * An early system seller, Lumines is one of the most addictive puzzlers since Tetris.

Marvel Ultimate Alliance
 * A nice port of the console action-RPG title. Control up to four Marvel superheroes as you smash the shit out of people and things.

Virtua Tennis World Tour/3
 * A nicely polished game of tennis. Surprisingly fun even if you don't give two shits about the actual sport.

Brave Story: New Traveler
 * A pretty and full-bodied RPG entry in the Brave Story series. Also note: it CSOs to a very handy 150-ish megs, with nothing ripped.

Armored Core Formula Front
 * Build giant robots, shit blows up. If you ever played an AC game, you know what to expect: nice graphics, almost too much customizability.

Burnout Dominator
 * Looks fantastic and moves at a very respectable FPS, invoking a very good sense of speed. I play it even more than the PS2 version.

Fired Up
 * Almost shockingly fun car combat. However, it's especially notable that it also rips and CSOs to like 20MB.  Fuck yeah!

Killzone Liberation
 * Ditches the frail FPS gameplay for fucking awesome isometric shootouts. Happens to look great as well.

Hot Shots Golf: Open Tee
 * A simple, fun golf game. Easyt to pick up and strangely addictive.

PQ: Practical Intelligence Quotient 1-2
 * Engaging puzzle solving in an Intelligent Qube-esque world.

Mercury
 * Micromanagement puzzle solving with liquid blobs of mercury.

God of War: Chains of Olympus
 * It's God of War, you know what to expect. Kratos makes a badass return in portable format, beating dudes up and collecting red things.

Patapon 1-2
 * A charming combination of rhythm, action and RTS. You press certain buttons in time to the chanting to make your squad move, attack, ect.

Tomb Raider Anniversary
 * The TR remake looks and plays great on the small screen. Lots of stuff to unlock as well.

Gradius Collection
 * SHOOT THE CORE! SHOOT THE CORE! SHOOT THE CORE! SHOOT THE CORE! SHOOT THE CORE! SHOOT THE CORE! SHOOT THE CORE!

GTA: Liberty City Stories
 * It's GTA3 on the go with an all-new story. What's not to like?

Crush
 * A very unique puzzler where you 'crush' your world from 3D to 2D and vice versa to navigate and remove obstacles.

Gurumin: A Monstrous Adventure
 * A charming 3D platformer-RPG ported over from the Japanese-only PC version.

Guilty Gear XX Accent Core Plus
 * The latest update to the GGXX series. Warning, it has a TON of voiced lines for the story mode, so if you want a smaller CSO, go for the older XX.

Ace Combat X
 * Fucking epic dogfighting. Since every /v/irgin's penis gets hard for AC, I don't even need to talk about it any more.

Parodius Portable
 * Collects a bunch of the Parodius games, humorous parodies of Konami's own Gradius series.

Puzzle Quest
 * Bejeweled-style gameply wish some RPG-like stat and story dressings. Addictive, and CSOs to a very small size.

DJ Max Portable 1-2
 * A shameless Beatmania clone that's got the goods. Addictive music, nice background videos, and that same ol' rhythm gameplay.

Every Extend Extra
 * A shoot-em-up in which your only method of defense is to blow yourself up in a strategic area, trying to take as many with you as possible.

Ratchet and Clank: Size Matters
 * Has all the depth and gameplay of a full-fledged Ratchet and Clank game. Nice production values, and finding and using new weapons is as fun as ever.

Ultimate Ghosts and Goblins
 * A very nice remake that keeps the core gameplay intact and injects gorgeous new eyecandy.

Gripshift
 * Fucking addictive. "Zany" tracks, awesome air control, and outlandish physics make this the most fun racing game/platformer I've ever played.

Loco Roco 1-2
 * A surreal experience controlling amorphous blobs in a dreamy, pastel world. Definitely worth a look for the smooth animation and unique controls.

GTA: Vice City Stories
 * In this game you play as Victor Vance, BAD ASS SUPAFLY MUHFUGGA and brother of Lance Vance. FUCK SHIT UP NIGGA!

Naruto: Narutimett Hero Portable
 * While not a good game in and of itself, it is quite a decent port job of the PS2 games. Non-fans need not apply.

Megaman Maverick Hunter X
 * A 3D makeover for the original Megaman X. It's a beauty queen and gameplay is the same as ever.

Megaman Powered Up
 * The original Megaman in 3D, with a dose of SUPER KAWAII LOL XD ^_^. Comes with a level editor, which is kind of badass.

Daxter
 * A gorgeous platformer that puts you in the shoes of Daxter, of the Jak and Daxter series. Plays like a dream.

Street Fighter Alpha 3 Max
 * It's a port with a few new features. It lacks Infrastructure though, which is a bummer.

Super Stardust Portable
 * Fun port of the PS3 dual-stick shooter. You shoot asteroids and other shit with somewhat suspect controls, due to the lack of a second analog stick.

Everyday Shooter
 * A strange musical shoot-em-up with gameplay reminiscent of Every Extend, sans exploding.

Exit 1-2 (Kangaeru Exit)
 * A game about rescuing people and navigating hazard-strewn enviroments, done in a neat high-contrast style.

Monster Hunter Freedom 1-2
 * Addictive-as-fuck monster-hunting gameplay. Unfortunately, it's ad-hoc multiplayer only unless you use XLink Kai.

Disgaea: Afternoon of Darkness
 * Astoundingly addictive turn-based tactics gameplay. Exclusive extras include Etna mode and ad-hoc multiplayer.

Final Fantasy Tactis: The War of the Lions
 * A port of the PS1 classic Final Fantasy Tactics, now with 16:9 widescreen and all-new animated cutscenes.

Me and My Katamari
 * Despite the lack of a second stick, this is still quite a complete game of Katamari.

Silent Hill Origins
 * A prequel to the Silent Hill series. Surprisingly scary if you play it with headphones, and the lighting effects are stunning for a portable game.

Medal of Honor Heroes
 * A solid, meaty FPS with the usual irritating controls. However, it's got 32-player multiplayer, FUCK YEAR!

Metal Gear Solid: Portable Ops
 * It's an all-new MGS game, and one of the best PSP games out there. It picks up after the events of MGS3, completing the tale of Big Boss.

Echochrome
 * A highly conceptual puzzler that has you changing the camera's perspective to modify the environment for armatures to escape.

fl0w
 * A chilled-out experience where you start as a small microbe and eat others to grow into a larger and more beautiful organism.

Castlevania Dracula X Chronicles
 * A fully 3D remake of the SNES classic. If you love whipping skeletons, this is your game.

Outrun 2006: Coast 2 Coast
 * Drift through eye-fuckingly gorgeous locales to impress the bitch in your passenger seat. Boasts a fucking awesome soundtrack.

Warhamer 40K Squad Command
 * A nice turned-based tactical combat title. It's Space Marines vs. Chaos.  For a 40K fan, this is more fun than you can shake a bolter at.

Coded Arms 1-2
 * A futuristic FPS. Not the best FPS, but the PSP doesn't have many FPSes.  Plus, it has Wifi support, and deathmatching is undeniably fun.

Harvey Birdman: Attorney at Law
 * It's actually made by capcom, and plays exactly like Phoenix Wright. It's fully animated, and looks just like the show.

Tales of Eternia
 * A port of the PS1 game. It was great then and it's still great now.  Pick it up if you haven't played it yet.

Jeanne D'Arc
 * An odd retelling of the tale of Joan of Arc in SRPG format. Gorgeous graphics and anime cutscenes round out this nice package.

Space Invaders Extreme
 * A fun remake of the classic alien shooting game, with all new graphics, effects, multipliers, and powerups.

Macross Ace Frontier
 * Somewhat suspect flying controls are saved by epic scenarios. Worth a look if you're forgiving and are into crazy aerial combat.

Tony Hawk's Underground 2 Remix
 * A nice port visually and gameplay-wise, but also adds a nice amount of fresh content, like entirely new levels. (They're not half bad, either.)

Parappa the Rapper
 * FUCK YES YOU ARE THE BEST PORT EVER!

Need for Speed Carbon
 * If you have a burning need to customize cars and participate in subpar, arcadey racing on the go, this is your game.

Tekken: Dark Resurrection
 * Hands down the prettiest game. It also packs a nice amount of meat in its shell.  Avoid only if you're a diehard hater, and maybe not even then.

Tokobot
 * A quirky Zelda OOT-style romp in which you solve puzzles and defeat enemies with the aid of small chicken-like robots, apparently.

Valkyrie Profile: Lenneth
 * A port of the good ol' PS1 classic with shiny new movies and such.

Power Stone Collection
 * Both of the hugely popular Dreamcast brawlers in one neat package. Fun, but I hope you like squinting.

WTF: Work Time Fun
 * A fucking weird WarioWare-style minigame collection.

Gitaroo Man Lives!
 * This incredibly awesome PS2 music game returns in a delicious port with two new songs.