no
no you cant because their to different systems designs so no you cant sorry.
No the PSP plays PSP games. The PS2 and PS3 games would be too complex to run even if a PSP version was made it has to be made with less capabilities so the PSP can run the program
Because they are different discs then PS2!
The PS2 is a console and the other is a portable The games information is stored on devices that are appropriate for the devices.
There have been some Nintendo DS Emulators developed by some kind souls, however these products are called Homebrews and they require the use of a PSP with Custom Firmware. It can be a difficult process however you can research the information on google and see how you can go about downgrading and moding your PSP so it can play Homebrews. However this is potentially damaging to your PSP and can lead to bricking (aka making it basically useless).
If you're asking whether you can play UMD games in PSP GO, the answer is, no you can't.There's no UMD on the PSP Go. So you can only download games and play them on the PSP GO.
PS3s built after August 2008 do not play PS2 games.
Yes, you can play PSP games without a memory stick. However, if you're playing games from PSP UMD's (little PSP games in cases). If you want to play games saved in your PSP's hard drive, then no. So, pretty much by UMD, you can play games without a memory stick in your PSP, but you'll be unable to save.
You could use an emulator to complete a PS2 game, but it is not playing the game like a PS2 console allows you to do and there are so many titles that do not play well. Really all you are doing is trying to turn your PC into a PS2 and you can only do that with a PS2 bios loaded into your PC. PS3 are not able to be played.
Games aren't region-locked on the PSP, so you just insert the UMD as normal and play.
for psp go games you have to download them there is no UMD slot for the games so you cant play psp go games on a psp 3000 unless your psp 3000 is chipped.
ps2 is nice but psp has more features,and a psp is a portable ps3 (but not same grafics) and and we all know ps3 is better than ps2 so I think psp is better.