He is one of the Fighting Stick Figures, alongside Green, Red and Blue, who first appeared in Animator vs. Animation 4, where they met an orange stick figure known as The Second Coming and taught them how to escape their website out into the rest of the internet.

Known as the brains and engineer of the group, he's best known for his excellent redstone skills and computer knowledge given his ease in using the command block in Minecraft and was easily able to hack into The Dark Lord's computer and create a cursor fighting program for Alan's cursor with it. He is logical and confident by nature, but can be a bit controlling.

Yellow is the smartest member of the Stick Gang, and is shown to be the calmest under pressure, able to think quickly and accurately in even the most dire of situations. His high intelligence comes in handy, especially through his expertise technology. Yellow is the one to teach his friends the ins and outs of Redstone and has shown himself to be a master with command blocks. Additionally, Yellow is shown to be very caring of his friends, especially Blue- who can be considered his best friend- and tries to keep them safe, though his efforts are not always successful, as seen in Nether Nap. Yellow also has a bit of a mischievous streak and enjoys pulling pranks on his friends, such as by taunting Red with a cake or making Green the wallpaper on Alan's phone.