During my first journey of the game I expected to get a chance to fight against the GK (acronym to avoid spoiling the game) and since we were never able to I suggest: "make him an optional Superboss at the very end of the game."

The character concepts of the GK looks really cool. This would make the ending extremly epic.

I hope this addition will find its way to the definite edition.
Would be really great to learn more about this mysterious villain and to bring this conflict to an end once and for all!

best regards
Demiurgus