Haphazardly, as Game & Watch made his escape from Dry Bowser, he erected a large brick wall behind him to stop the skeletal tyrant in his tracks...or, barring that, slowing him down. The monochrome creature's primordial fear had distracted him from the whereabouts of his plumber friend and his beloved princess; for now, losing the Koopa King was his top concern.
Snapping his fingers in an "eureka" moment, G&W shed his plumber form and morphed into a large vulture...just like the one he had seen on TV at one point! Once he achieved bird shape, he picked up the courage to go after the skeletal Bowser!
ACTION 1: I'll use Metamorphosis/Shape-Shifting to transform into a giant vulture! 1 stone will be used to grow in size and mass, 4 stones will be used to give myself Flight, and 2 stones will be used to increase my Strength rating!
ACTION 2: I'll use 1 stone of Flight to go after Dry Bowser at my top speed of four, shifting the additional 3 stones of its AN to Defense