From the main menu. Go to Database, then it should be in that sub menu. If you have Yu-Gi Oh! GX 2 it will ask you to insert another disk. Insert the Yu-Gi Oh! GX first game and it will download the Egyptian God Cards to your PSP once you reinsert GX 2 UMD.
If you mean PSP games on UMD, no, the PSP Go does not have a slot for UMD.
Yes you can still use UMD disks in the PSP 3000. However you can not use UMD disks in the PSP Go.
No you cannot use a umd be to downgrade psp software
no it doesn't you have to download the game into your psp.
It uses PSP UMD games.
Yes it does, it has a UMD drive like the 1000 and 2000.
There is no such thing as a 'PSP 2000 UMD'. UMDs are UMD's, they have no PSP model-specific variants.
After the PSP 3000 they released the PSP go and the PS Vita either use UMDs
You can download a DLC or add on to a game and use it to play with the UMD game
No, the PSP Go! does not allow you to use UMD disks.
PSP Go do not have UMD slots.
The PSP Go does not have a UMD reader, you cannot play a UMD game on it.