Yep. You heard correctly. Common Sense Media, a parent/kids age rating website, has these reviews for HF: Rise of the Rookies / Savage Planet
I mean... WHAT?!?!?!?!?!?!?!?! Hero Factory... a... a... a... 18+?!?!?!?!?!?!?!?!?!?!?!
Please. Somebody PLEASE explain.