Izuku uses One For All at full power and flicks his fingers to create powerful shockwaves. The force of this attack has enough power to shatter large waves of ice instantly. Izuku first used this technique against villains in the Shipwreck Zone of the USJ. He later uses it in his fight against Shoto Todoroki during the U.A. Sports Festival Arc.
- Delaware Smash Air Force (デラウェアスマッシュエアフォース Derawea Sumasshu Eafōsu?): Izuku uses his upgraded gloves made by Mei Hatsume to direct a blast of compressed air against his foe, possessing enough concussive force to stun Gentle while he was in mid-air, giving Izuku an opening to catch up to him. By using all five of his fingers, he can launch up to five Delaware Smashes simultaneously.