You do not 'need' any kind of memory stick in the PSP for you to play games. However without it, you are unable to save game data. So while it is not mandatory, it is pretty much essential.
u need a memory stick
You will need a memory stick for ALL things you want saved on the PSP.
no no
Yes, you need a memory stick for all PSP's except the PSP Go which comes with a 16Gb hard drive built in
the psp needs a memory stick duo
No but you do need a memory stick
You need a memory stick inside a PSP to be able to download things.
You need to unbrick your psp, for this you have to have the Pandora Battery and magic memory stick.
In general, PSP games do not 'need' a memory stick for you to be able to play them, but they do need it to store saved game data as the PSP itself has no inbuilt space for that function.
Nothing. The memory stick is for you and the PSP to store data on. All the PSP's system files, the firmware, is coded into its internal memory. You will need your PSP to format the stick, and after that it will be able to save games, or you could load music onto it for the PSP to play, etc.
NO, a PSP's memory stick is a memory stick pro duo. A dsi's is a sanDisk
yes you do common sense