I still have warm memories of being a kid watching Family Matters on a Friday night and seeing this commercial: https://youtu.be/EQ3clCcwHFc
At that moment all was right with the world.
For me, it was this commercial: https://www.youtube.com/watch?v=8l5KN7x6rS0
I was obsessed with dinosaurs at that age, and the phrase "you've never needed help from a dinosaur before" really stuck with me. It instantly solidified Mario as "cool" in my tiny kid mind. I immediately knew I needed that game. Cut me some slack, I was like, five. I had most certainly not conquered every Mario game at that point, pretty much had only played a few levels of 1 and 3, but Mario had a dinosaur now and I needed it.