a psx
is a PlayStation 1
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Er................No!
No the PSP can not play PS2 games
No they do not play on a PSP
u mean psp vita? yes u can but u cant play psp vita games on a psp
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.