Perhaps the most disappointing aspect of the PS Classic's implementation is that some games exhibit frame rate issues, Tekken 3 being the most obvious example. This is because Tekken 3 and other games noted below are based on the PAL release from Europe, where analog video standards limited refresh rates to 50hz. NTSC regions, including North American and Japan, ran at 60hz. Regardless of the cause, if you're used to Tekken 3 running at 60 frames per second, prepare for additional disappointment.