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[Lancake]

(oh, and by stating how many buttons are used for one of them, you've greatly increased the odds that someone is going to try, because now they have a defined goal)
(special circumstances? Yes, that helps, and you might get lucky and never have those commands get found without someone de-compiling the game)

That one (or more) of your hard-coded commands can nuke a sector and not log what it did, is not a "player" level problem, it's a problem of "the dev-team forgot that documenting every step of every process is beyond critical". That never, ever ends well.
(seriously, even something as simple as "command [insert name here] activated by: [insert name here]" is enough to know what just broke everything)

There's no such hidden command, it was a hypothetical example of a worst case scenario. Also, assuming that I'm speaking the truth that there is a command that requires 4 input keys is silly. But who knows? There may or may not be one that requires 4 input keys to do something magical.