Sonic The Hedgehog 2 (Mega Drive, 1992)
Sonic games used to have amazing music. And while single-player Mystic Cave Zone came a close second, this has to make the list. It may be basic compared to modern CD recordings, but just listen to how each of the console's sound channels is used - it's remarkable. Intricate and dramatic, this industrial anthem builds and builds before seamlessly looping in a non-annoying way.
Above: Sonic 2's regarded by many as the finest in the series. We agree