The Game Display tells us of an interesting kind of secret in Super Mario World that few know about. Once in a while in that game, a 1-up Mushroom just randomly seems to appear, flung into the air, sometimes in such a way as to seem to encourage you to leap off a cliff to go after it. Here is their video explaining what’s going on with those (9½ minutes):
There are some locations in a few levels that have four invisible spots in the background that can detect your presence. If you touch the four in order, the extra life appears. They’re found throughout the game, and they’re supported in code to the extent that, if you find one in a level, the game sets a flag for that level so it won’t appear again in that play session. You have to exit your game and load it back up again before you can get another extra life by this means from that level.
Many of these locations are arranged so that to trigger them in order, you’ll have to move in a loop around some location. This is similar in concept to the stakes in Super Mario 64 that, if you run around them a few times, cause them to generate coins to collect. Another kind of weird secret in a Mario game. I feel like Shigeru Miyamoto must have been lying awake at night brainstorming ever more obscure things to put into them.
