Sunsoft's games are known to utilise DPCM samples to add bass lines, and Gimmick! is no exception. In 2020 it was discovered that the samples suffer from an encoding issue known as bit-reversal. This hack corrects all of the samples to what the composers & sound programmers likely intended.
Database match: Gimmick! (Japan)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 9974006CE28678F1F30C1F1292B9173572EB36D0
File CRC32: EEB6B362
ROM SHA-1: 9336C1968359C55C3E4438579C7BF14C443EDEBE
ROM CRC32: D65E7C7