The Fake Smash Ball is a very dangerous item in the Super Smash Bros. franchise. It first appeared Super Smash Bros. Ultimate. Due to their volatile nature, these deceptive items can also be called "Smash Bombs", especially in Japan.
The Fake Smash Ball has an uncommon chance of appearing instead of the Smash Ball. If a player breaks it, everyone near the Fake Smash Ball will be launched, and will not allow the player to activate their Final Smash like the real Smash Ball.
Fake Smash Balls can be told from their normal counterpart by the line going horizontally being thicker and the vertical line a little thinner than the real Smash Ball.