The King's Judgement takes the form of Excalibur charging downward bladetip first, both as an icon and on the tracks.
In gameplay, the King's Judgement can only be obtained at random from Item Boxes by Excalibur Sonic. As with most other Items, Metal Sonic can also use the King's Judgement if he uses the Steal Item to steal it from the aforementioned user.
Once obtained, the player can utilize the King's Judgement by pressing its icon on the bottom of the HUD. When used, Excalibur will appear above the user's next rival if the user is behind said rival. If the user is leading the race however, then Excalibur will target the rival characters directly behind them. Regardless, Excalibur will float in the air above its target for a few moments before coming down on them. If a rival character gets struck by Excalibur as it comes down, they will take damage, causing them to lose Rings and slow down momentarily. To avoid the King's Judgement, the playable character has to step away from Excalibur before it locks onto its target.
The King's Judgement can also be upgraded by leveling the user up to level 4, 10 and 16 respectively. For each upgrade, the King's Judgement will deal damage faster.