Trunks dodges the opponent's attack, flies above them and punches them in the face. He then appears behind them whilst saying "Behind you!", and kicks them away. Trunks used this attack against Goten during their bout at the World Martial Arts Tournament.
Appearances in games
The attack was named Vision Smash in the Raging Blast games, where it appears a Counter Move used by Kid Trunks in both his base and Super Saiyan forms.