diff --git a/README.md b/README.md
index f3ec1c793bd..b26fd56a7b1 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Check out [Github Issues](https://github.com/pagefaultgames/pokerogue/issues) to
   - Pokémon Legends: Arceus
   - Pokémon Scarlet/Violet
   - Firel (Custom Ice Cave, Laboratory, Metropolis, Plains, Power Plant, Seabed, Space, and Volcano biome music)
-  - Lmz (Custom Jungle biome music)
+  - Lmz (Custom Ancient Ruins, Jungle, and Lake biome music)
   - Andr06 (Custom Slum and Sea biome music)
 
 ### 🎵 Sound Effects
diff --git a/public/audio/bgm/jungle.mp3 b/public/audio/bgm/jungle.mp3
index 3a21c9bdb41..fbb770b0ad3 100644
Binary files a/public/audio/bgm/jungle.mp3 and b/public/audio/bgm/jungle.mp3 differ
diff --git a/public/audio/bgm/laboratory.mp3 b/public/audio/bgm/laboratory.mp3
index e2b617e590a..1eba66ef56f 100644
Binary files a/public/audio/bgm/laboratory.mp3 and b/public/audio/bgm/laboratory.mp3 differ
diff --git a/public/audio/bgm/lake.mp3 b/public/audio/bgm/lake.mp3
index c61fef15e42..e6762935770 100644
Binary files a/public/audio/bgm/lake.mp3 and b/public/audio/bgm/lake.mp3 differ
diff --git a/public/audio/bgm/metropolis.mp3 b/public/audio/bgm/metropolis.mp3
index 98c2eb396b6..514c9ae15b1 100644
Binary files a/public/audio/bgm/metropolis.mp3 and b/public/audio/bgm/metropolis.mp3 differ
diff --git a/public/audio/bgm/ruins.mp3 b/public/audio/bgm/ruins.mp3
index 62f31893423..3692c71562f 100644
Binary files a/public/audio/bgm/ruins.mp3 and b/public/audio/bgm/ruins.mp3 differ
diff --git a/src/field/arena.ts b/src/field/arena.ts
index bf4075e5c1c..9ce19c85283 100644
--- a/src/field/arena.ts
+++ b/src/field/arena.ts
@@ -762,7 +762,7 @@ export class Arena {
     case Biome.BEACH:
       return 3.462;
     case Biome.LAKE:
-      return 5.350;
+      return 7.215;
     case Biome.SEABED:
       return 2.600;
     case Biome.MOUNTAIN:
@@ -788,7 +788,7 @@ export class Arena {
     case Biome.FACTORY:
       return 4.985;
     case Biome.RUINS:
-      return 2.270;
+      return 0.000;
     case Biome.WASTELAND:
       return 6.336;
     case Biome.ABYSS:
diff --git a/src/locales/en/bgm-name.json b/src/locales/en/bgm-name.json
index e13f580def6..fee0ea02bb1 100644
--- a/src/locales/en/bgm-name.json
+++ b/src/locales/en/bgm-name.json
@@ -112,13 +112,13 @@
   "island": "PMD EoS Craggy Coast",
   "jungle": "Lmz - Jungle",
   "laboratory": "Firel - Laboratory",
-  "lake": "PMD EoS Crystal Cave",
+  "lake": "Lmz - Lake",
   "meadow": "PMD EoS Sky Peak Forest",
   "metropolis": "Firel - Metropolis",
   "mountain": "PMD EoS Mt. Horn",
   "plains": "Firel - Route 888",
   "power_plant": "Firel - The Klink",
-  "ruins": "PMD EoS Deep Sealed Ruin",
+  "ruins": "Lmz - Ancient Ruins",
   "sea": "Andr06 - Marine Mystique",
   "seabed": "Firel - Seabed",
   "slum": "Andr06 - Sneaky Snom",