The Star Trail takes the form of a yellow five-pointed star, both as an icon and on the tracks. This particular object glows yellow and emits bright sparkles.
In gameplay, the Star Trail can only be obtained at random from Item Boxes by Zazz. As with most other Items, Metal Sonic can also use the Star Trail if he uses the Steal Item to steal it from the aforementioned user.
Once obtained, the player can utilize the Star Trail by pressing its icon on the bottom of the HUD. When used, the user drops a number of the Star Trail's stars behind them as they move forward and switch lanes. These stars will then set themselves permanently on the spot on the lane they were dropped on for the duration of the race. If a rival character collides with said stars, they will take damage, causing them to lose Rings and slow down momentarily. To avoid the Star Trail, the playable character has to either step out of its stars' lanes or jump over them.
The Star Trail can also be upgraded by leveling the user up to level 4, 10 and 16 respectively. For each upgrade, the number of stars dropped when using Star Trail will be increased.