Toshinori focuses all his power into his fist and then throws a punch to produce a massive amount of wind pressure. The pressure is strong enough to create an updraft which in turn creates rain. Toshinori first uses it to save Katsuki Bakugo from the Sludge Villain.
The move is later used frequently by Izuku.
- 5% Detroit Smash (5 パーセント デトロイトスマッシュ 5 Pāsento Detoroito Sumasshu?): With One for All: Full Cowling active, Izuku delivers a quirk enhanced punch directly to his opponent. Izuku first used this technique in the air and hit Stain with a downwards punch..
- 100% Detroit Smash (100 パーセント デトロイトスマッシュ 100 Pāsento Detoroito Sumasshu?): Izuku activates One For All at 100% and delivers a straightforward punch to the opponent. He used this at the training camp he participated in to save Kota Izumi.
- The attack refers to the city of Detroit, which is located in Michigan, USA.
- It is the only special move used by All Might which doesn't refer to a state in the US, but rather a city.