Acey says:

Do $mundane_task $ridiculous_number times without $extremely_common_action and something cool happens!

e.g. beat the elite 4 100 times without talking to anyone. (oh wait, you have to talk to them to fight them, welp) I think that one was common enough that Game Freak did a little nod to it: if you get the same Pokémon in the hall of fame 200 times in G/S, it changes the text to "HOF master" or something. And that's all.

And everyone knew Mew was in the grass outside Palette Town and in a secret garden behind Bill's house, the Triforce was in the Sky Temple if you could figure out how to get up there (probably involving beating the running man), and Luigi was hidden somewhere dammit.

Perhaps more interesting to me was messing with OoT's "beta quest" code and not knowing enough about the game's workings to realize that the effects are mostly just scrambled cutscenes and map settings (with a couple actual beta elements thrown in here and there) and not the slightly corrupted leftovers of some actual hidden quest that the programmers left in this broken state because they got told to cut it as they were coding it.

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