Note Block is a character from Battle for Rainbow Road.
Note Block is one of the characters in Battle for Rainbow Road. They are based on the Note Blocks in the Mario games since their first appearance in Super Mario Bros 3. This one Note Block happens to be agender, and thus uses they/their/them pronouns. They're music-inclined, and will almost always listen to their music with their headphones. However, they're also mute, so they really can't talk or sing. Though, they do make expressions and respond to so many things so differently, it makes them unique to the entire cast. The only noise that they can make is when they are bopped on, like in the original Mario games.