I initially counted Game and Watch out of the running for this quiz, but now that I'm looking at it there are a number of spirits that look like him. Will add, thanks :)
In Super Smash Bros. Ultimate, there are collectibles known as ‘spirits’, which are based on various video game characters. Some characters have multiple spirits based on them, and this quiz is about all the characters with at least 3. Kyurem and Waluigi are here because they have 3 spirits.