Nightmare Park presents the player with a rudimentary maze and the object is to emerge from the exit (something like Hampton Court!) At frequent intervals during negotiation of the maze, the computer presents you with problems which must be overcome for you to survive. Some of these involve brain power, such as mental arithmetic questions; others require manual dexterity such as manoeuvring your character around a herd of stampeding unicorns... Finally, some of the problems involve pure chance, such as guessing which of three does not conceal a hungry lion!

The skill level is selectable and there are a wide variety of problems to solve. But graphics, animation and sound are not very impressive; and the game is only likely to appeal to the younger punter who is usually less daunted by this more elementary form of games programming.