Looks authentic, based on the print advertisements for games with similar graphics and gameplay from that period. Though, whoever drew that cow and that JohnCarter-LukeSkywalker-BuckRogers Captain Ersatz loved muscles so much I'm surprised the camera isn't bulging.

Wow, it never even occurred to me that the bull probably refers to the stock market. I was thinking maybe it was a reference to some game about a half-minotaur/half-ghostly-white-mist beast. Seriously.

I also love the "multi-channel CB emulator." Is this what chat rooms were originally called? If so, breaker-breaker, this Rubber Ducky wants to sign up!

By the way - this ad came from December 1984 issue of RUN magazine. Like many other computer magazines of the era, it's a goldmine of perceptions and aspirations about early home computing.