More ideas part 3

Can i at least get the game started, answer: if i stop getting distracted and learn what to do then yes. Now for the ideas: evolving monsters (like you have a daughter imp who wants to be a succubus just find the right stuff and she becomes a succubus child), fusion (as tvtropes say "says exactly what's on the tin" or at least one of the tropes), mutants (no x-men please)