Die FAQ ist super, so wie ziemlich jede Gamefaqs FAQ.

Aber am interessantesten ist wohl dies:

Enemies Oversoul when you kill a specific amount of that enemies type.
This may sound confusing, but it's actually very simple. Each enemy type has a
certain amount you must kill before one can Oversoul. Twelve plant types, for
example, must be killed before one can Oversoul. After you kill twelve plant
types the thirteenth plant type enemy you run into will Oversoul. As long as
you have killed twelve plant types, no matter what plant enemy you run into
next, the thirteenth encounter will trigger an Oversoul. There's different
amounts you must kill for each type of enemy before you can get one to
Oversoul, and once you kill a certain Oversouled enemy, the amount will then
reset for that particular enemy type.


D.h, man muss eine bestimmte Anzahl an Gegnern killen, um ihn zu Oversoulen wie z.b den Pudding 20 mal Killen, ist der 21ste 100% Oversouled. Danach geht das spielchen weider von vorne los