My friend says he would prototype himself first and then his dreamself, problem 1 is all imps would god tier. Now we've had discussion that a Witch of Doom could technically make a genesis frog. I guess my question is, is this possible and if so is the session still beatable

There is only one way for you to make Imps go God Tier and that’d be by prototyping your already God Tier self which would be extremely convoluted to pull off and generally detrimental. The Prototypings happen the instant you enter, even if you change the Sprite itself later it doesn’t do anything.

I don’t quite understand by ‘could technically make a genesis frog’ like… Out of nothing? With a Doom Aspect? Uuh…