diff --git a/src/phases.ts b/src/phases.ts
index 8b6ca8f2f..f888feb3b 100644
--- a/src/phases.ts
+++ b/src/phases.ts
@@ -482,11 +482,15 @@ export class EncounterPhase extends BattlePhase {
 
       if (enemyPokemon.species.speciesId === Species.ETERNATUS) {
         if (this.scene.gameMode === GameMode.CLASSIC && (battle.battleSpec === BattleSpec.FINAL_BOSS || !(battle.waveIndex % 250))) {
-          if (battle.battleSpec !== BattleSpec.FINAL_BOSS)
+          if (battle.battleSpec !== BattleSpec.FINAL_BOSS) {
             enemyPokemon.formIndex = 1;
+            enemyPokemon.updateScale();
+          }
           enemyPokemon.setBoss();
-        } else if (!(battle.waveIndex % 1000))
+        } else if (!(battle.waveIndex % 1000)) {
           enemyPokemon.formIndex = 1;
+          enemyPokemon.updateScale();
+        }
       }
 
       loadEnemyAssets.push(enemyPokemon.loadAssets());
diff --git a/src/pokemon.ts b/src/pokemon.ts
index 8117f9bf1..07aa6280a 100644
--- a/src/pokemon.ts
+++ b/src/pokemon.ts
@@ -406,6 +406,10 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     return 1;
   }
 
+  updateScale(): void {
+    this.setScale(this.getSpriteScale());
+  }
+
   updateSpritePipelineData(): void {
     [ this.getSprite(), this.getTintSprite() ].map(s => s.pipelineData['teraColor'] = getTypeRgb(this.getTeraType()));
     this.updateInfo(true);