how many people out there were just as pissed after opening mp4 and not finding roller?comon takara!!wtf? anyways,until takara gets smarter,i did my own.this one has a few goodies that can combine onto it.at the push of a plunger,alot of missiles go flying.roller even has a red push button led.he does fit in mp primes trailer cause hes about the same size as a alternator.sacrificed are a armada superprime cab,a chunk from a ko skygarry and some beads from the wifey.