diff --git a/public/images/events/september-update-pt_BR.png b/public/images/events/september-update-pt-BR.png
similarity index 100%
rename from public/images/events/september-update-pt_BR.png
rename to public/images/events/september-update-pt-BR.png
diff --git a/public/images/events/september-update-zh_CN.png b/public/images/events/september-update-zh-CN.png
similarity index 100%
rename from public/images/events/september-update-zh_CN.png
rename to public/images/events/september-update-zh-CN.png
diff --git a/src/data/biomes.ts b/src/data/biomes.ts
index 721231f9cb0..0e37cc94ff5 100644
--- a/src/data/biomes.ts
+++ b/src/data/biomes.ts
@@ -1,6 +1,6 @@
 import { Type } from "./type";
 import * as Utils from "../utils";
-import {pokemonEvolutions, SpeciesFormEvolution} from "./pokemon-evolutions";
+import { pokemonEvolutions, SpeciesFormEvolution } from "./pokemon-evolutions";
 import i18next from "i18next";
 import { Biome } from "#enums/biome";
 import { Species } from "#enums/species";
@@ -46,7 +46,7 @@ export const biomeLinks: BiomeLinks = {
   [Biome.SEABED]: [ Biome.CAVE, [ Biome.VOLCANO, 3 ] ],
   [Biome.MOUNTAIN]: [ Biome.VOLCANO, [ Biome.WASTELAND, 2 ], [ Biome.SPACE, 3 ] ],
   [Biome.BADLANDS]: [ Biome.DESERT, Biome.MOUNTAIN ],
-  [Biome.CAVE]: [ Biome.BADLANDS, Biome.LAKE [ Biome.LABORATORY, 2 ] ],
+  [Biome.CAVE]: [ Biome.BADLANDS, Biome.LAKE, [ Biome.LABORATORY, 2 ] ],
   [Biome.DESERT]: [ Biome.RUINS, [ Biome.CONSTRUCTION_SITE, 2 ] ],
   [Biome.ICE_CAVE]: Biome.SNOWY_FOREST,
   [Biome.MEADOW]: [ Biome.PLAINS, Biome.FAIRY_CAVE ],
diff --git a/src/data/pokemon-species.ts b/src/data/pokemon-species.ts
index 8930c7053a3..09448b332e4 100644
--- a/src/data/pokemon-species.ts
+++ b/src/data/pokemon-species.ts
@@ -944,7 +944,7 @@ export function initSpecies() {
     new PokemonSpecies(Species.METAPOD, 1, false, false, false, "Cocoon Pokémon", Type.BUG, null, 0.7, 9.9, Abilities.SHED_SKIN, Abilities.NONE, Abilities.SHED_SKIN, 205, 50, 20, 55, 25, 25, 30, 120, 50, 72, GrowthRate.MEDIUM_FAST, 50, false),
     new PokemonSpecies(Species.BUTTERFREE, 1, false, false, false, "Butterfly Pokémon", Type.BUG, Type.FLYING, 1.1, 32, Abilities.COMPOUND_EYES, Abilities.NONE, Abilities.TINTED_LENS, 395, 60, 45, 50, 90, 80, 70, 45, 50, 198, GrowthRate.MEDIUM_FAST, 50, true, true,
       new PokemonForm("Normal", "", Type.BUG, Type.FLYING, 1.1, 32, Abilities.COMPOUND_EYES, Abilities.NONE, Abilities.TINTED_LENS, 395, 60, 45, 50, 90, 80, 70, 45, 50, 198, true, null, true),
-      new PokemonForm("G-Max", SpeciesFormKey.GIGANTAMAX, Type.BUG, Type.FLYING, 17, 32, Abilities.TINTED_LENS, Abilities.TINTED_LENS, Abilities.TINTED_LENS, 495, 85, 35, 80, 120, 90, 85, 45, 50, 198, true),
+      new PokemonForm("G-Max", SpeciesFormKey.GIGANTAMAX, Type.BUG, Type.FLYING, 17, 32, Abilities.COMPOUND_EYES, Abilities.COMPOUND_EYES, Abilities.COMPOUND_EYES, 495, 85, 35, 80, 120, 90, 85, 45, 50, 198, true),
     ),
     new PokemonSpecies(Species.WEEDLE, 1, false, false, false, "Hairy Bug Pokémon", Type.BUG, Type.POISON, 0.3, 3.2, Abilities.SHIELD_DUST, Abilities.NONE, Abilities.RUN_AWAY, 195, 40, 35, 30, 20, 20, 50, 255, 70, 39, GrowthRate.MEDIUM_FAST, 50, false),
     new PokemonSpecies(Species.KAKUNA, 1, false, false, false, "Cocoon Pokémon", Type.BUG, Type.POISON, 0.6, 10, Abilities.SHED_SKIN, Abilities.NONE, Abilities.SHED_SKIN, 205, 45, 25, 50, 25, 25, 35, 120, 70, 72, GrowthRate.MEDIUM_FAST, 50, false),
diff --git a/src/loading-scene.ts b/src/loading-scene.ts
index 4d67ec01ccd..432dbcd7469 100644
--- a/src/loading-scene.ts
+++ b/src/loading-scene.ts
@@ -246,7 +246,7 @@ export class LoadingScene extends SceneBase {
     } else {
       this.loadAtlas("types", "");
     }
-    const availableLangs = ["en", "de", "it", "fr", "ja", "ko", "es", "pt_BR", "zh_CN"];
+    const availableLangs = ["en", "de", "it", "fr", "ja", "ko", "es", "pt-BR", "zh-CN"];
     if (lang && availableLangs.includes(lang)) {
       this.loadImage("september-update-"+lang, "events");
     } else {
diff --git a/src/timed-event-manager.ts b/src/timed-event-manager.ts
index abdb2db232a..874bf6a8b46 100644
--- a/src/timed-event-manager.ts
+++ b/src/timed-event-manager.ts
@@ -33,7 +33,7 @@ const timedEvents: TimedEvent[] = [
     xPosition: 19,
     yPosition: 115,
     scale: 0.30,
-    availableLangs: ["en", "de", "it", "fr", "ja", "ko", "es", "pt_BR", "zh_CN"]
+    availableLangs: ["en", "de", "it", "fr", "ja", "ko", "es", "pt-BR", "zh-CN"]
   }
 ];