Breakthrough (Audiogenic/Your Computer) Available for Acorn Electron, BBC B/B+/Master 128 & BBC/Electron You play a wizard who can make blocks appear and disappear at will. You need to climb on top of them, drop from them and reach a door on each level. The mazes are intricate and there's also a time limit.
Breakthrough (Virgin Books) Available for Atari 400/800/600XL/800XL/130XE