JezzBall, developed by Marjacq Micro Ltd. and published by Microsoft Corporation in 1992, is an action-puzzle game where you must divide a playfield using a marker while avoiding bouncing balls. Inspired by Qix, the goal is to reduce the playfield to 25% of its original size.
The game became widely known through the Microsoft Entertainment Pack 4. Its legacy includes numerous clones and remakes, despite Microsoft discontinuing support in 1996.