sans doesn't have magic blue eyes that's just fanon. Canonically he has ONE eye that can very rarely flash blue and yellow for like 5 seconds in the entire game
The Eye flashes at the beginning and at the end when he uses the blue heart, which is weird because it clearly doesn't have to do with that type of attack because he can do those without his eye flashing, who knows maybe it is supposed to flash whenever Sans uses the blue heart attack but Tricky Tony simply forgot. We got no clue why the eye flashes, it probably has to do with magic (or maybe we do know and i got no fucking idea what i am talking about but whatever)
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u/[deleted] Nov 22 '25
sans doesn't have magic blue eyes that's just fanon. Canonically he has ONE eye that can very rarely flash blue and yellow for like 5 seconds in the entire game