Things You'll Need
Instructions
Insert the PS2 game into the PS2 and turn it on. Figure out where the game is freezing.
Soft reset the game by hitting the reset button. Allow the game to load back to the freeze point and see whether it has corrected the problem. Sometimes, especially if the PS2 has been on a lot, the PS2 overheats, causing games to freeze.
Eject the disc from the PS2 if the problem persists. Take a look at the bottom side of the disc. Look for any scratches or smudges, especially in the center where the PS2 reads a lot of information from the disc.
Wipe off any smudges with a cotton tissue. Clean scratches with a tissue as well. The scratches won't go away, but it will lessen their impact on the PS2's laser reading problem.
Resurface severely scratched discs using a disc resurfacing device. To use the machine, put the game disc in it upside-down, apply resurfacing fluid to the disc and turn on the device to polish it. Results can vary depending on the device; the cheaper ones will only remove minor scratches. More expensive ones will repair deeper scratches.