diff --git a/packages/frontend/src/pages/drop-and-fusion.game.vue b/packages/frontend/src/pages/drop-and-fusion.game.vue
index cca2d75c76..f0fdc4d491 100644
--- a/packages/frontend/src/pages/drop-and-fusion.game.vue
+++ b/packages/frontend/src/pages/drop-and-fusion.game.vue
@@ -671,7 +671,6 @@ function replay() {
 		seed: seed,
 		gameMode: props.gameMode,
 		getMonoRenderOptions,
-		replaying: true,
 	});
 	attachGameEvents();
 	os.promiseDialog(loadMonoTextures(), async () => {
diff --git a/packages/frontend/src/scripts/drop-and-fusion-engine.ts b/packages/frontend/src/scripts/drop-and-fusion-engine.ts
index cc7f9abd56..db99370d0b 100644
--- a/packages/frontend/src/scripts/drop-and-fusion-engine.ts
+++ b/packages/frontend/src/scripts/drop-and-fusion-engine.ts
@@ -308,7 +308,6 @@ export class DropAndFusionGame extends EventEmitter<{
 	private gameMode: 'normal' | 'yen' | 'square';
 	private rng: () => number;
 	private logs: Log[] = [];
-	private replaying = false;
 
 	/**
 	 * フィールドに出ていて、かつ合体の対象となるアイテム
@@ -364,7 +363,6 @@ export class DropAndFusionGame extends EventEmitter<{
 	constructor(env: {
 		seed: string;
 		gameMode: DropAndFusionGame['gameMode'];
-		replaying?: boolean;
 		getMonoRenderOptions?: (mono: Mono) => Partial<Matter.IBodyRenderOptions>;
 	}) {
 		super();
@@ -373,7 +371,6 @@ export class DropAndFusionGame extends EventEmitter<{
 		this.tick = this.tick.bind(this);
 		//#endregion
 
-		this.replaying = !!env.replaying;
 		this.gameMode = env.gameMode;
 		this.getMonoRenderOptions = env.getMonoRenderOptions ?? null;
 		this.rng = seedrandom(env.seed);