Plot: Agent X, also known as Agent X in the Brain Drain Caper, is a computer game released in 1986 for the ZX Spectrum. The player takes control of the eponymous Agent X in a multi-load game made up of a number of sub-games. It was followed by a sequel, Agent X II: The Mad Prof's Back. Wikipedia
Plot: Ah Diddums is a computer game released by Imagine Software for the ZX Spectrum in 1983 and can be run on the 16KB/48KB versions of the machine and the Commodore 64 in 1984. Wikipedia
Plot: Adidas Championship Football is a soccer video game developed by Ocean Software in 1990. It was released for the Commodore 64, Amstrad CPC and ZX Spectrum. The Spectrum version of the game went to number 2 in the UK sales charts, behind Shadow Warriors. Wikipedia
Plot: Agent X II: The Mad Prof's Back is a computer game released in 1987 for the ZX Spectrum, Amstrad CPC and Commodore 64. It is the follow-up to the ZX Spectrum game Agent X. The player takes control of the eponymous Agent X in a multi-load game made up of a number of sub-games. Wikipedia