Izuku was first seen using it to defeat a group of villains on the water, during the Unforeseen Simulation Joint Arc. Izuku powers up his finger to create a powerful shock wave with a flick. He later uses it in his fight against Shoto Todoroki during the U.A. Sports Festival Arc.
- 1,000,000% Delaware Detroit Smash (1000000 パーセント デトロイトデラウエアスマッュ 1000000 Pāsento Derauea Detoroito Sumasshu?): Izuku uses One For All 100% that is also boosted by his adrenaline and delivers a powerful smack with incredible force that blasts the opponent away. This 100% adrenaline-enhanced move is powerful enough to overpower Muscular's Muscle Augment and incapacitate him.