ZoneBall 1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This Mac application is an intellectual property of Falkon-Ware. The software is included in Games. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Try to control at least 80% of the playfield using your laser while dodging enemies in this arcade game. You are in a laboratory and your job is to isolate nano-robots which were released during an accident. The only way to clear the area is by shooting a laser beam over the surface of your probe to modify its molecular structure and build walls. The level is considered to be cleared as soon as 80% of the playfield are covered with walls.
You may want to check out more Mac applications, such as DotBot, Phantasia or Toppler, which might be similar to ZoneBall.