Judge (ジャッジ, Judge) (known as Judgment in Melee) is Mr. Game & Watch's side special move. Mr. Game & Watch will attack with his hammer and hold up a digital display with a random number on it when used.
In all of the games Mr. Game and Watch has appeared in leading up to Ultimate, he retained his normal sprite when using the move. In Ultimate, his appearance was changed to resemble the characters in the Judge game from the Game and Watch series.
Numbers and their effects
The number that can display as the move is used is a random number from 1 to 9, like in the original game. In order to add variance, in Melee and Brawl, Mr. Game & Watch cannot get a number that was used in either of the two previous uses of the move, meaning each valid number has a 1 in 7 chance of appearing. For example, getting a 5 means that the next two uses of Judge cannot result in a 5. At the start of a match, the previous two uses are set to 2 and 1, meaning that the first use of Judge in a match cannot be a 2, and the first two uses cannot be a 1.
In Super Smash Bros. 4, this behavior is removed, allowing any number to always have a 1 in 9 chance of appearing and making it possible to get a number any number of times in a row. Getting a 1 in the All-Star Mode's Waiting Room does not cause recoil damage. In addition, in the Home-Run Contest and Target Blast modes, the move always comes up as 6, removing randomness but making it impossible for the player to use 9 to their advantage.
In Ultimate, it is once again impossible to get the same number twice in a row, but it is still possible to get the same number every other roll. In addition, if the player is the lowest-ranked player in a match (has fewer stocks or points than any other player), there is a 50% chance of getting a 9 in the last 5 seconds of the match, though this will not bypass the inability to get the same number twice in a row. If this 50% check doesn't succeed, the standard roll will occur, which may result in a 9 regardless, making the effective likelyhood of getting a 9 roughly 56%. 
The effects associated with these numbers are as follows:
Special Move customization was added in Super Smash Bros. 4. These are the variations:
Judge was a Game & Watch game that could be played with two players. Two Game & Watch characters had signboards and hammers. When a round starts, each player's sign would display a random number from 1 to 9. The point of the game was for the player with the higher number to hit their opponent on the head with their hammer, while the player with the lower number tried to dodge said hit. If the numbers were equal, the player can either hit or dodge. This was translated in the Smash world to where the higher the number, the stronger or better the attack.
Names in other languages