Most Slims (PSP 2000s) are hackable except the very new Slims that come with firmware 4.01 official or over
You do not need to have a Memory Stick inserted to play games if you have UMDs.
Any game you download from the PSN will go onto your Memory Stick. To play them, select memory stick from the PSP's menu bar, the games will be shown there.
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.
All psp games can be used with a memory stick. The memory stick saves your progress on your games. You can buy a memory stick from wal-mart for about 10 or 20 dollars.
no because your xbox blocks saving and putting things on/off you memory stick
That is the PSPgo
if you have to much memory on it, you can play certain games and it will come to a screen before loading and you can delete memory
no you just need to be in range of a wifi spot. but a memory stick can save your games and you can play where you left off in the game with out the game in it.
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.
It doesn't 'need' a memory card (Memory Stick is a Sony card, the DSi uses SD cards), you can play games without using one. A memory card would be for storing lots of photographs, MP3s or DSi store games.
You can download demos from the PSN. As for downloading games to your memory stick, there is currently no way to play them.
Yes, you can. My friend downloaded lots of games on his USB and plays them all the time.