Unlocks a secret boss character: Yakumo (耶雲).
He is available in Versus, Training and Tournament modes.
Database match: Yu Yu Hakusho Final - Makai Saikyou Retsuden (Japan)
Database: No-Intro: Super Nintendo Entertainment System (v. 20210222-050638)
File/ROM SHA-1: 73A444501A9AECC390EC9DFA6D6726E0E2FCED9A
File/ROM CRC32: 5617A42E