There's a specific kind of toy that i'm trying to find. i don't remember what its called but it was popular ~10 years ago, and was similar to Bionicles, only the concept was that you could interchange the body parts of the figures, the arms, legs, torso, and head were all separate parts, i also remember an RPG style game online related to the toys, where you went around fighting people and then trading them body parts to get better body parts. I think its related to Lego but i'm not 100% sure. If anybody knows what i'm talking about i would be very grateful if you would tell me.