Dropkick didn't want to come to Earth, but Megatron made him. He'd rather stay home on Cybertron, sitting in the dark being angry, but Megatron has him hauling materials all over this lame planet. He doesn't even know why the ALLSPARK is so important, or why the Autobots need to be getting in his way all the time. He just wishes everyone would leave him alone. Still, while he's here he might as well blow some stuff up. That's always fun.