PPSSPP Homebrew Store

[VaroFN]

Nazi Zombies Portable by NZP Team.
Zombie Crisis by Andrew "Hudson" Childs and Geoffrey van Dijk.
Open Tyrian PSP by Deniska.
Kene Touhou Mohofu by Team Shanghai Alice.
Mobile Assault by codetactics.
Toy War by davidgf.
Beats of Rage PSP by SamuraiX.
Heretic PSP by kgsws.
Doom PSP by kgsws.
Wolfstein 3D by Zack.
Left4Quake by Ribcaged Entertainment.
CSPSP by Nataku92.
CSPSP Paintball Mod by Omnitrix.
Duke Nukem 3D by Mr Peanut.
QUAKE I: Arena Mod by Lupus.
Kurok PSP by MDave.
GDP by DeViaNTe.
Counter Strike Combined Assault (CS Portable) by Stealth Kill and rein4ce.
Desert Stunts by gorglucks.
3D Roll by Chimecho.
Syobon Action PSP by DanielBR.
Powder by Marvin Sanchez.
The World's Hardest Game PSP by chocodino.
Cubic Zombies by A_Noob.
Zombie Desert by casco, Harry and jj_calvin.
Battlegrounds 3D by Xfacter.
BOXHEAD PSP by SG57.
REminiscence by Sektor.
GLQuake PSP by jurajstick.
Jelly Car by Drakon.
Kosmodrones by Abhoth, Like Lok and Frode Frank.
Super Mario War by Percival.
X-Moto-PSP by royale.
Alex the Allegator 4 by MK2k.
Crazy Gravity Portable by Underminer.
Metal Blob Solid by Deniska.
Secret Mario Chronicles.
No Gravity Demo by realtech VR.
The Newton War by realtech VR.
Ultra by realtech VR.
Purple Motion by realtech VR.
Eye Liner by realtech VR.
Biohazard 2 by Eskema.
Callisto by FragLab.
Jazz JackRabbit PSP by Deniska.
Kill Everything That Moves by Deniska.
Laserix 2 by fafenstein.
OpenTTD PSP by Jaime Peñalba.
Ozone by Helius.
PSP Dungeons by Charnold.
Rise of the Triad PSP by Darkwar.
SmashGpsp by Matkeupon.
SnakeSP by MrMr[iCE].
UKKE by Xtreamlua Team.
Polygunwars by ahrimanes.
Bomb Jack PSP by Extemplario.

These are IMO the best homebrew games for the PSP. I'm pretty sure I missed some though. I didn't try any of them on PPSSPP yet though.

As for the Homebrew Store, I think it would help if the games had screenshots, descriptions and such.