The Joke Character Scale is used to measure such characters.
Types of Joke Characters
Characters that can only cause harm to themselves or adsorb most of the damage from their attacks.
(Number 1 on the Joke Character scale.)
Practically useless. While they can still move, they can't really fight back.
(Number 2 on the Joke Character scale.)
Characters with almost normal movesets, but they are set back by the fact they are incredibly weak.
(Numbers 3-6 on the Joke Character scale.)
These characters act like normal characters under a jokey exterior.
(Number 7 on the Joke Character scale.)
These characters are actually overpowered if you can figure out how to use them correctly.
(Numbers 8-14 on the Joke Character scale.)