When you finally beat Sans; but then realize there are several other challenging boss battles; When you choose the pacifist route; and start making friends with all the monsters; When you accidentally hit a monster; and ruin your pacifist run; When you encounter Flowey for the first time; and get completely creeped out; When you finally reach the end of the game; and feel both satisfied and empty at the same time; When you hear someone say they didn't like Undertale; and you can't believe what you're hearing; When you find out there's a hidden boss; that you completely missed in your playthrough; When you try to make sense of the game's timeline; and end up even more confused than before
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