robot + dinosaur
ask any 10-year old boy to name the 2 coolest things on the planet. what do you think the response will be?
monster trucks + werewolves? nope.
firemen + blood? no dice.
dirt + vikings? no way.
the answer you will receive 100% of the time is "robots + dinosaurs."
now, imagine taking the two, engineering them into a single toy that converts from one to the other and you'll begin to see why a generation of kids (myself gleefully included) was hypnotized by the transformers craze of the 80's.