Also, adding insult to injury, your use of the word "mum" suggests that you may have been forced to play the 50hz PAL version of Sonic 2 instead of the 60hz NTSC version.
Also, adding insult to injury, your use of the word "mum" suggests that you may have been forced to play the 50hz PAL version of Sonic 2 instead of the 60hz NTSC version.