the amazing glitches of games

[Nemica]

While playing Yoshi's Island, I remembered a strange glitch. It's in the
second last level. The one right before Bowser's Castle. In the second
map, the one with stars and moon in the background, there is this spiral
platform, which starts spinning when you step on it. When you jump off
that platform, just before it reaches the end of the leading line, Yoshi
might jump out of the screen. Once I even managed to skip the whole
(rather difficult) map. But it's not easy to trigger.