I was going to do this mod on the XtremeGamer, but ran into some problems. From what I can see, the original op-amps in the Xgamer has its "pins" on the wrong side of the amp, so some bridge or something has to be done to get the new amp in place. Check the photo of it:

Anyone got any advice on how to proceed? Is using small bits of iron wire a good thing? First solder the wire to the xgamer and then solder the new amp to the wires?
EDIT: It might be possible to just bend the pins a little on the new amp to get it in place.
EDIT2: I have made another photo where both op-amps are beside each other to compare sizes. The new amp the the right of the old amp. The new amp is not soldered yet.
