This hack replaces the team names with the colours of their jerseys. This change allows players who are not familiar with the real-world teams in question to make an educated decision about jersey colour before playing the match.
The following substitutions are made:
Chicago -- Magenta
Boston -- Blue
Montreal -- Red
Washington -- Pink
Calgary -- Orange
Los Angeles -- White
Toronto -- Cobalt
Minnesota -- Brown
Edmonton -- Black
Pittsburgh -- Green
Database match: Wayne Gretzky Hockey (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: 2470CE28D144F6D1320A81E8F1FAEABD07BED462
File CRC32: 26F900C5
ROM SHA-1: F7C9B6694362C244234257153B14A4F1A6093F6C
ROM CRC32: 15F0D3F1