This is just basic RPG game where you have to build up your stats and try to unlock secrets. And the only thing that's "adult themed" is one of the secrets. I'll make it even easier for you guys, here are requirements to reveal secrets: for the first secret, you need to have 150 intelligence. For the second one, go into the "rec center" and click on the ghost in the window on the left side of the screen. And for the last one, you need 250 charisma. Have fun!