Back in 1991, Ibis Software near San Francisco put out a $49.95 screensaver called Protector Shark. I used to run it on an old Mac IIsi. It was great fun, with the user having control over a swimmer in snorkeling gear. A shark would occasionally appear onscreen and if the swimmer happened to be on the same level as the shark, a click of the spacebar would fire a spear at the shark. The graphics were very cool, but I haven't been able to find a copy of it. If anyone has it, could you kindly post it?

Thanks in advance!