PSP Cheat Database

[CGameDev]

I put this together, hope you guys find it helpful. 1,710 game cheats
  pspCheats.zip (Size: 1,000.99 KB / Downloads: 89388)

[HarveyConway]

Great! Thank you!

[cyclonmaster]

Nice one. Should have this by default in PPSSPP. Save time to look for it anywhere.

[LunaMoo]

Nah, this was discussed before and as long as PPSSPP doesn't have perfect emulation in terms that apply to cheats(like memory allocation), this should never happen.

Also I'm overall against large PSP cheats databases since they're quantity over quality and many of the existing cheats back then caused problems even on real hardware they were written for.
There were many cheats that broken games in some parts while working in others, but my favourite example is Patapon(3rd one I believe) cheats which are soo awfully made that they were corrupting savedata of player that used them and players that connected with him through multiplayer making them unable to ever level up again if I recall. Many people were affraid to play this game multiplayer because of that and they created a fake backstory to this about some mystical hacker/s intentionally breaking other people's files with dedicated wiki page missinterpreting whole situation while in reality all this was caused by someone's complete lack of knowledge and people spreading those broken cheats with such databases.

It's impossible to check cheats for breaking stuff in games even by(or especially by) community effort, since people would just check if those cheats did what's advertised without ever realizing there can be nasty side effects later in the game.