Sorry this has taken so long. Here is the full soundtrack (including unused songs) that I wrote for Waterworld on the SNES, published by Ocean Software. Track listing below

00:00 Opening Logo
00:50 Main Menu
02:25 Map
04:24 Mission Theme 01
07:37 Diving
13:20 Atoll
17:03 Mission Theme 02
20:51 The Depths
25:32 Shop
27:15 Mission Theme 03
31:40 Final Mission
33:15 Game Over
33:26 Scores
34:33 Unused Song 01
35:10 Unused Song 02