A smash is the kill shot in table tennis. As it's a straight power shot with very little topspin, it can only be used against balls which are high, allowing the ball to clear the net.
If your opponent mishits their serve or return, you'll see some exclamation marks appear and the message "SMASH IT!". This means that the ball has gone high enough to smash. To further guide you, the ball trail, the screen edges and the ATTACK button will glow orange.
Smashes can only be executed with perfect timing.
👍 TOP TIP
If you mishit, you'll see the message "IT'S HIGH!". Use this as a warning to prepare for your opponent's smash.