The Bubble Bomb is a Trap Item that appears in Sonic Forces: Speed Battle. When used, it will place bubblegum puddles that can block the opponents' way.
The Bubble Bombs take the form of magenta bubblegum puddles splatted on the ground. These puddles also emit bubbles.
In gameplay, the Bubble Bomb can only be obtained at random from Item Boxes by Vector. As with all other Items, Metal Sonic can also use the Bubble Bomb if he uses the Steal Item to steal it from the aforementioned user.
When used, three bubblegum puddles will be dropped some distance ahead of the user's current location on all the lanes that the user is not currently on. Touching a Bubble Bomb with a playable character (including the user) will cause the player's screen to be obscured by bubbles and prevent them from using Items. This effect will last for a short amount of time and can be ended early by tapping the bubbles to pop them.
To avoid Bubble Bombs, the player must either jump over them or run in between them.