I used to have a Power Pad when I was a kid. It was a ton of fun when you had a bunch of friends over. I remember it would always slide along the carpet, and sneak its way over the bricks in front of the fireplace without anyone noticing until someone would stomp their foot down on the corner of the bricks and cry out in pain, then we'd all get off and reposition it. Anytime I think of the Power Pad, I always associate it with the pain of stomping on the corner of the damn brick.
I only ever played two games on it, World Class Track Meet (exact same game as the above Stadium Events, only rebranded after Nintendo purchased it from Bandai, which is why an actual copy of Stadium Events is so rare and valuable now), and Super Team Games. Super Team Games was my favorite, mostly for quirky things like the crab walk, the bubble bounce thing, tug-o-war, and especially skate boarding.