Jack Attac is a 1-player arcade game for the BBC Micro Computer (also released for the Electron as well).

Jill has been kidnapped by the giant in his castle in the clouds, and Jack must rescue her by finding the key to her cell. Jack can move laterally, jump, and climb ladders. If he falls too far or touches any dangers, he loses a life.

As Jack explores, he finds fruit and picks up color-coded keys to open doors. Jack can also climb ladders that lead into the beanstalk itself, allowing Jack to enter a world inside the beanstalk. After finding the final key to save Jill, the player has two minutes to reach her and bring her back to their home.