Bad News Baseball
I stopped at a flea market the other day and picked up a bunch of NES games to help round out my collection a little bit. Once I got them home I had to try them out to make sure they worked. And, since a few of them were games that I had never played before, I had to try and figure out how they worked.
The first game I tried was Bad News Baseball. A game that features kids playing baseball somewhere where there are rabbits as umpires for some reason.