OHKO (One hit knock out) Player Health reduced to 1 for every life.
Very Challenging Hack for Advanced Double Dragon 2 players.
Requires IPS patcher like LunarIPS
Database match: Double Dragon II - The Revenge (USA) (Rev 1)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: E4FBBE69B3B539B198AE0E037FDC2558074A283F
File CRC32: A0F7027D
ROM SHA-1: 5BF8F3D23F0819E23B9BCC9F1DFAFD3B6106C4F2
ROM CRC32: 8A640AEF