Grunt is another example of a robot whose visual appearance is very important to the robot as a whole. Grunt is a fictional creature from outer space, so appearance is a huge part of the robot's personality. Here are some features that help Grunt look the part:

First, Grunt has an alligator-shaped head, complete with a motorized mouth filled with sharp teeth. On either side of his head there is a bright blue eye, made using the round, translucent blue element found in the EV3 Expansion Set and a round black element.

Grunt stands upright and has an arm on either side of his torso, which gives him a human-like posture. The arms themselves are styled and detailed and even include three-fingered hands. The EV3 brick is located in the center of Grunt's torso, making it easily accessible.

Finally, the wide, sturdy legs end in flat feet that are complete with toes!

All of these design features come together to make a handsome robot that looks like a quirky alien creature: