@60sRefugee Since Samus has a grapple hook thing in Super Metroid I suppose she could use a smaller version of that, like a little captain hook tractor field projection at the muzzle.Metroid 1 has no ladders or edge climb movement (often to Samus' detriment as she gets stuck all the time).IIRC, Mega Man 1 (on the NES) has normal hands that morph into the buster cannon only when he shoots.Another idea is a Dalek plunger that appears out of the barrel.