An idea for a video game. This post comes from Bikdip's Majora's Mask LP (pt 24) when he is rolling through the snow in the Goron mask.
He mentions that he is far enough but will keep going. A few seconds later, he stops the Goron roll and immediately enters the next area. What likely happened is that when he reached the transition point, the game automatically stopped the roll (and his comment was simply about the pits that you need to roll past; he was far enough that he could just walk).
What I heard, however, was a video game where you reach a finish line. Most players will release the gas and the level will fade out. But if you hold the gas, you keep going well past the finish line. If you make it rather long (another minute or two to weed out those who are not committed), you can hide a very nice secret there.
This same idea is actually found in Super Mario Galaxy 2. I forget the level but I think it might be a Bowser's Castle level. Regardless, there is a section where you ride the pink block-platform across lava. It stops at the "end" where you jump off onto solid ground. However, if you stay on the pink platform, it eventually continues further on and leads to a secret star.