By playing the same introductory section 3 years later (and after correcting my mistake of naming myself "Frisk"), it all felt pretty familiar and I managed to advance fairly quickly, maybe clocking around 45 minutes to Toriel's house IIRC. In "Frisk" mode, I had enough to afford a Spider Donut, and it was pretty necessary as well; but in "Lily" mode, I just had enough gold to buy some Spider...-something-else. Something important is that I tried different things on those two attempts; the first one started with Flowey: I first dodged all of his (her? its?) bullets to see what happened: "You know what's going on down here, don't you?". But on my restart, I touched them from the beginning, draining almost all my life and hearing: "In this world, it is kill or be killed." I did the same with the training dummy -- at first I just started a conversation, but the second time I did a trick I just had recently learned: You can actually spare it to boredom (lol).
I noticed everything was pretty much equal to the demo, from the candy-spilling, to the enemies, jokes, and attack patterns. I'm also a completionist, so I try to always make sure I've tried every possible option and read every dialogue (that's why I also plan to do every ending as well); I also tend to talk to NPCs at least twice with the same purpose. Even then, each time I have to choose only one option to advance, I choose either: 1._The most "pacifist" or kind one, or 2._The one I feel would flow better with the story (if I'm going to be kind and merciful, I might as well tell everyone the truth as well! So that's what I've done as well).
Upon reaching Toriel's house, I felt pretty relaxed with the music and had some nice memories of 2015. I went to bed but noticed that it didn't spawn a message I got back then, not by turning the lights on or off. Huh... Then I listened to Toriel's story until I could no longer do anything more than ask for the path to the exit of the ruins. When she told me to go back, I went to bed and there it was: "Lily! Wake up! You are the future of humans and monsters!" (I think that's the same voice you hear on the Game Over screen...)
Then I fought Toriel, trying to deliberately die, but couldn't. So after trying to talk to her and failing, I spared her until the battle was over. And then... Flowey: You managed to spare the life of a single being. Veeery clever. Ugh... Is there anything that could catch Flowey off-guard? Anyway, I went on my way, a light shined progressively, and...
"UNDERTALE... By Toby Fox"
Nice...
Brand new area. I tried to go back to the ruins, but couldn't (Toriel herself said she didn't want me to ever come back). Okay, so I proceeded and wanted to play a little bit more. I heard some strange noises in the woods until a shadow appeared... It asked me to stretch my hand... And after a funny fart noise, Sans appeared! (Hoho! I never imagined I would meet him so soon! That's interesting). He asked me to hide behind a conveniently-shaped lamp because his brother, called Papyrus, wanted to FREAKING KILL ME. I thought he was a fearsome guy at first but... He sounded kind of all over the place. Plus, that music...
Anyway, I ended my second day of playtime saving on the nearest star.
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Here lies the sig of BK_Sheikah00, who swore fealty to the Gurus of Board 8.