You've got a 150MB ISO of Guilty Gear X. Now what?
Yes, if:
No, if:
Assuming you manage to find a legitimately ripped file that works, the user experience is severely compromised compared to the original intent of the developers.
Warning: Many "200MB PS2 game" downloads are fake—either viruses, password-locked scams, or actually PSP/PS1 games mislabeled.
If you need tiny PS2 games on a low-storage device, consider: