How to become a max demon - choices:
I. 1 act - in the forest when the game warns about choosing let the demon take up more space in your body
II. at the end of 1 act, do not help the prince of elves
III. 2 act - when you find the king, absorb his power automatically - determines the 2 choice
IV. end 2 act - do not help the elves, Absorb power concubine
V. 3 act no longer matter, after killing all the concubines before the boss change the max demon