Long-serving readers of YS may remember my total obsession with this game when it first appeared in Spring 1987. Three years! It certainly doesn't seem like it. In fact the whole idea of the Clinic was inspired by the game - for the first four or five months it was 'Dr B's Head Over Heels Clinic', until the letters started to ask questions about other games. Playing it for the first time in ages, I have to admit I can see what all the fuss was about. It's brilliant - possibly the best game ever released on the Spectrum. It's beautifully programmed, superbly designed (nothing else has ever come close), as addictive as any game can be and absolutely gorgeous to look at. It's so good, in fact, that no-one has ever dared to do a 3D isometric game again, because there's no way you could top it. Arcade skills, imagination, lateral thinking, willingness to experiment, speed of thought and of movement - you need the lot. But the real mark of genius is that you're constantly learning, and getting better, and going a bit further, and working out puzzles you thought could never be solved. This, Tetris and Super Mario Bros on the Nintendo would be my Desert Island Games - it's a timeless classic, and not surprisingly it plays best of all on the humble ol' Spectrum. An essential purchase.