Hikage Strike (日影ストライク, lit. "Hikage Strike") is Katsuragi and Hikage's Secret Fusion Ninja Art in Senran Kagura 2: Deep Crimson. It requires at least 3 ninja art energy scrolls from both of them to use. Like all Secret Fusion Ninja Arts, its power increases with the characters' mutual Affection.
Katsuragi quickly spins while releasing wind around her. Hikage then does a short hop and right after she does so, Katsuragi launches Hikage with her greaves at full force, causing Hikage to fly forward at high speed while slashing everything around her. Afterwards, Katsuragi quickly catches Hikage.