I can't say I'm fond the metal robot (of the future!) idea, but I really, really like the bone idea. Why? It sparked a number of ideas which I think are incredibly awesome, but I'm not going to go into detail. But I thought of it like this: In the case of the bone thing, it could be like an adaptable exoskeleton for the Bomy that it could possibly grow and expand to cover and become big and walking giant type thingie. But only for a short period of time as it would slowly drain bomb count or health or maybe mana or something, but I can elaborate if people want me to.