Toby Fox has repeatedly said, "your choices don't matter", in Deltarune. However, immediately after launching Deltarune, it appears your choices do matter. Ralsei even says, "Kris your choices matter too". It's a play on words, YOUR choices don't matter, but other's do.

Oct 19, 2021 · 12:53 AM UTC

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This is why stuff like the Snowgrave route is possible because unlike Undertale, where the game is centered around, "you", Deltarune is a game filled with multiple characters in which you can manipulate to do whatever you want. Hypothetically, these aren't your choices.
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