The first thing I actually remember attempting was a sidescrolling Star Wars game on the SNES. I was very young, probably only about 4. My father worked at an ad agency at the time handing Nintendo of America's account and apparently a few of them got sent home with the product.
I was very bad at it. I can guarantee my father was very bad at it because he did not then nor does he now play video games. But I remember passing the controller to him absolutely convinced that he could beat it for me when I died jumping into those sarlacc holes over and over.