
If you try to walk away from Papyrus' "invisible electricity maze" before you "solve" it, he'll call you out on it.
If you have no money (pretty much has to be on purpose at this point in the game), then you'll give it the gift of friendship. If you have less than that, the game will describe you giving it all the money you have.
Using the "Gift" ACT on Gyftrot will have you give it up to 30 G. You can then continue to take Snowman Pieces without his permission until he's reduced to "a useless pile of snow". Continuing with a True Pacifist Route and then returning to him after triumphing against the final boss leads him to say that he knows "the truth" about you, despite what other people may think, and he will comment that "your heart is as cold as my butt." If you do this during a No Mercy run, the snowman will beg you to stop eating him. However, if you eat it right in front of him, he'll be suitably horrified and refuse to give you any more. Normally, if you eat or discard a Snowman Piece, you can return to the snowman to tell him you lost it and get a replacement. i don't have any snow." But if you somehow do have enough money (almost certainly through cheating), he'll say something along the lines of, "wow, that's a lot of cash. If you still say yes despite lacking funds, he says, "you don't have the money? hey, that's okay.
When Sans offers to sell you Fried Snow, if you keep saying yes to his offered price, he'll keep adding more zeros to it until he's asking 50000G for it, far more than you will probably earn throughout the whole game.If you do these things in the opposite order, she'll have a subtly different reaction, with entirely different dialogue. She'll then talk about this during the Playable Epilogue of the Pacifist route if you were to talk to her. Do it again after choosing to call her "mother", and she replies that you are ".an interesting child". Do it again, and she will think your advances are endearing, but also a bit sad.
Flirting with Toriel over the phone will result in her writing it off as a joke. Toriel briefly remarks that " You really are no different than them!" before she dies. But, there's nothing stopping you from selecting the "Fight" command during this, and doing so will instantly kill her. If you attempt to spare Toriel, she eventually stops attacking you and starts to regret fighting you.