so this is like 100 gaster right? 6 rudens in the chapter 3 room, called the forgotten man, existed since the beginning of time like how gaster was split across time, the rudens talk about being "monochrome" like the goners, directly talks about the deltarune, there is a egg prophecy, disappears like gaster, when asked to draw him you can't because he is unable to be perceived, all the rooms are out of bounds like the gaster rooms in undertale, the windows in chapter 4 have eggs at the top of them, in undertale to access one of the gaster rooms you have to ignore the annoying dog, in chapter 2 you have to ignore the annoying dog to access the egg room, talks in all caps.

also the cosmic space theory of a egg which represents the earth and the ANGEL like the angels heaven, and how the dark fountains come from the earth. the egg is also laid on primordial waters on earth typically which the egg man says he was on the earth at that time when dinosaurs were around.