So, just wondering...there seems to be three ways to kill a TF, right? 1.) Shoot into the TF's chest, where the spark is(except for when the AllSpark being pushed into Megatron's chest, where it probably only over-loaded him; I have no doubt he'll be resurrected). 2.) Tear it in half(ala Megatron tore Jazz into half and the spark vanished). 3.) Beheading(Optimus beheaded Bonecrusher, Frenzy beheaded himself). When there was only one supposed way to kill a Transformer(if you count one and two together), how come now a beheading can destroy a Transformer(Bonecrusher and Frenzy are dead because they have been confirmed to be dead and dropped into the ocean or whatever it's called at the end of the movie)?