Snapjaws seem to be living beartaps with teeth. They appear in the colors red and blue.
Snapjaws will commonly move around the stage trying to bite Donkey Kong Jr. They are able to climb up and down vines and appear to actively chase after the young Kong if he is near. Red Snapjaws are usually already on the stage only moving around in a certain area. The blue ones are summoned by Mario and will go straight down vines.