GTA 2 works perfectly on the PSClassic with enhanced resolution and ‘speed hack’ enabled. Alternatively if you prefer, standard resolution also works well. The only strange thing I noticed is that sound tends to loop for a few seconds on the PlayStation boot screen, then boots into the game as normal.

The enhanced resolution doesn’t seem to create any artifacting or sound problems too and frame rate sits at a stable and reliable 30 FPS.

Settings used and tested below: