This bit made me lols, sounds like its going to be one very random planet, I wonder if killing tractors is anything like tractor tipping (films cow tipping) was in the pixar film cars :)
All they mean is since it's trying to promote none violence they are going to have to be more creative than just getting a gun and shooting monsters. Since MJ is well known for his dancing skills makes sense to have those in game. So how well you dance will be used to overcome monsters :D
i think it means there's going to be mindforce type "weapons". still weapons though and everything still based around HP depletion. a strange world to be sure, where you destroy things without any sence of destruction. but then Michael lived in a strange world himself, so i supopse its fitting.
Yeah, looks like a thriller indeed. Dancing tractors into an early death...sounds so out of wack it could actually be fun (while doing some acid) :D