What would happen if Jade prototyped her sprite with Greth... Gareth... Gobelcoque... the dog thing. Would that fuck up Lord English's plan in any way?
You mean Becquerel? Dunno. My guess is that it would break the game in unspecified ways, certainly ruining SOMEONE'S plans.
I think the fractal landscapes that showed up in Problem Sleuth are a pretty good approximation on what the troll battlefield looked like. And DMK is pretty much the Black King with the Sceptre of Orbs Twelvefold.
And the thing with the kernels is PERFECTLY SIMPLE. The kernelsprite hatches when you enter the Medium, or when you prototype it the second time, whichever happens first. That's why Jaspersprite was able to pull Rose up. And the royals and lesser enemies receive whatever prototypings the kernel had when it hatched. It's not explicitly forbidden to enter the medium with an unprototyped kernelsprite, it just hasn't happened yet.
I can't decide what I want Jade to prototype her sprite with, if at all. On one hand, it might be cool to see what happens when you don't prototype, yet on the other, ROBOT IMPS. Or mummy imps, or armour imps, or beauty imps, or manthro imps, or Grandpa imps, or Becquerel imps, or Typheus imps, or Jade imps. There are too many options!