This hack removes color emphasis bits at PPUMASK $2001, which was used in this game, making picture bright and colorful as it should be.
Database match: Immortal, The (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: E8E8120F4DB2EB26549B04634B13A1ABF5A6F3D3
File CRC32: ACEB84C1
ROM SHA-1: E886869F2E50BED902133A3DDB8FD7E7853002EF
ROM CRC32: 8889C564