You may or may not have heard this soundfont before.
Creator: Cyber Punk Yun (Seong-jin Yun)
Website: http://soback.kornet21.net/~chaos/ (dead)
Type: GM (+GS drums)
Melodic presets: 128
Drum presets: 12
Date: 01.04.1999 (v1.9)
Download: https://www.fox-gieg.com/rkhive/new/new_banks/chaos_bank_v1_9.zip (v1.9)