Success!
Further research has proved fruitful. According to archives of the UK top 40 singles, Ambassadors of Funk featuring M.C. Mario - Supermarioland reached number 8 towards the end of October 1992. That very same year in December, another tune appeared in the charts and soared to the heady heights of number 34, HWA featuring Sonic The Hedgehog - Supersonic. Armed with an artist and a title, it didn't take long to track it down on the internets. I knew I remembered a Sonic single coming out around the same time, and I knew I remembered it being really cheesy. It appears that I was correct!Closer inspection of the charts has yielded even more fruit! There was the rather terrible Doctor Spin - Tetris, which apparently reached number 6 in October 1992, the very same month as Supermarioland! I am terribly ashamed that this track slipped my mind.