River Person (All Dialogue) 

i like how some of them are predictions/references/hints: "I heard ASGORE has a favorite food." - hinting at the butterscotch cinnamon pie that can weaken him in battle "I heard spiders have a favorite food. It's spiders." - hinting to how you can spare muffet in battle with the spider donut (and also just a general fact of undertale that spiders eat eachother) "You can never have too many hot-dogs... sadly, that's not true." - referencing sans' hotdog stand and how you can stack hotdogs on your head if your inventory is full, capping at 29 "Don't snoop behind people's houses..." - possible reference to the secret at the back of sans and papyrus's house? "Pet pet pet... The neck stretches infinitely into the cosmos." - references to lesser dog's neck extending the more you pet it "Temmie Village... the room before the darkening lantern room." - self explanatory "Somewhere, it's [current day]. So be careful." - maybe not an exact reference, but i think its intriguing how the riverperson knows your irl day "Humans, monsters... Flowers." - reference to flowey "The angel is coming..." - reference to the prophecy of the 'angel' in undertale "Beware of the man who speaks in hands / came from the other world." - possible references to gaster

5:55 beware of gaster

the infinite hallway in waterfall is confirmed

wait,does the river person need to pee?(look at all of the text)

There is literally 2 warnings of gaster