1. Destroyed stuff is just destroyed, no goodies. I don't know if there's an achievement for that or not, but it basically just ensures nothing can block your way. 2. Only real reason is if you want to merge a monster with something else. 3. They USED to give skill points in older games; I don't know if they still do or not.
2. Only real reason is if you want to merge a monster with something else.
3. They USED to give skill points in older games; I don't know if they still do or not.