is that kitkat from project arrhythmia?

But first you need to make an animation, so click on the pencil by the top of the page and click on the text that says "Try out the new beta editor!" and make an animation/drawing for your profile pic/avatar

Click on your profile and scroll down and click "Set as profile picture" on the thing above the animation you want to be your avatar/profile picture

jsyk the n's in dun dun dun looks like H's

Lol dat bird tho XD