Button Mash is commonly portrayed as a video game fanatic based on his appearance in the show. He is also usually portrayed as curious and hyper. Button appears to have a short attention span, and appears to occasionally have trouble separating the fantasy world of video games from real life.
Because he doesn't have a cutie mark, Button is often friends with the Cutie Mark Crusaders, As a result of JanAnimations' Ask-TheCrusaders tumblr, he is often said to have a relationshp with Sweetie Belle. He is also sometimes paired with Babs Seed. But most people believe he's more with Sweetie Belle. He's also best friends with Vanellope von Schweetz because she herself is from a video game and he often visits the arcade to play inside their home games.
Button is commonly drawn with a fake mustache or drinking from a juice box, reminiscent of scenes from Button's Adventures. He also has memes centered around peeling back a "Are you a winner?" label on a juice box. He's also spawned a meme around an old game box he plays, titled "Button's odd game".