How long does Error Sans appear in Undertale 3D Boss Battles?

Best Answer

Error Sans usually shows up around the third wave of the boss battle and sticks around for quite a bit, so get ready for a challenge!

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More Answers

NickelingAlan·3 months ago

Honestly, Error Sans shows up whenever he feels like it. He's unpredictable like that!

CorrectingGait·3 months ago

In my experience, Error Sans appears after the second fight sequence and stays until you manage to beat him or, well, you get dunked.

AlightingTang·3 months ago

Error Sans appears midway through the boss battle and can be quite persistent. Brace yourself!

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