diff --git a/resources/image/ads/shinssaem.png b/resources/image/ads/shinssaem.png
new file mode 100755
index 0000000..112a61f
Binary files /dev/null and b/resources/image/ads/shinssaem.png differ
diff --git a/src/game/global/global_variables.js b/src/game/global/global_variables.js
index 033ee48..044d593 100644
--- a/src/game/global/global_variables.js
+++ b/src/game/global/global_variables.js
@@ -3,7 +3,7 @@ var LANGUAGE_ENGLISH		= "english";
 
 var MODE_RELEASE			= "release";
 var MODE_DEBUG			= "debug";
-var runMode = MODE_RELEASE;
+var runMode = MODE_DEBUG;
 
 function isDebugMode() {
 	// console.log("debug mode ? " + runMode);
@@ -117,5 +117,19 @@ function isTypingSentenceStage() {
 	return false;
 }
 
+function isExperiencePlayerAccount() {
+	if(sessionStorageManager.getMaestroAccountType() == 100)
+		return true;
+
+	return false;
+}
+
+function isExperienceMaestroAccount() {
+	if(sessionStorageManager.getMaestroAccountType() == 101)
+		return true;
+
+	return false;
+}
+
 
 let textStyleBasic = { font: "bold 32px Arial", fill: "#fff", align: "center", boundsAlignH: "center", boundsAlignV: "middle" };
diff --git a/src/game/start/Ads.js b/src/game/start/Ads.js
new file mode 100644
index 0000000..2df4933
--- /dev/null
+++ b/src/game/start/Ads.js
@@ -0,0 +1,68 @@
+var Ads = {
+
+	preload: function() {
+		game.load.image('ads_image', '../../../resources/image/ads/shinssaem.png');
+	},
+
+	create: function() {
+		this.counter = 3;
+
+		this.game.stage.backgroundColor = '#4d4d4d';
+
+
+		// top ui
+		var screenTopUI = new ScreenTopUI();
+
+
+		// contents
+		var titleText = game.add.text(game.world.centerX, game.world.centerY - 250, "광고", this.getFontStyle(64, "#88bbff"));
+		titleText.anchor.set(0.5);
+		titleText.fontWeight = "bold";
+		titleText.stroke = "#338";
+		titleText.strokeThickness = 4;
+
+		game.add.text(game.world.centerX, game.world.centerY - 200,
+			"Sponsored by",
+			this.getFontStyle(32, "#888"))
+			.anchor.set(0.5);
+
+		var sprite = game.add.sprite(game.world.centerX, game.world.centerY, "ads_image");
+		sprite.anchor.set(0.5);
+		var width = sprite.width;
+		var height = sprite.height;
+		if(width > height)
+			sprite.scale.set(300 / width);
+		else
+			sprite.scale.set(300 / height);
+
+		this.skipText = game.add.text(game.world.centerX, game.world.centerY + 200,
+			"3초 후에 게임 화면으로 넘어갑니다.",
+			this.getFontStyle(32, "#888"));
+		this.skipText.anchor.set(0.5);
+
+		game.add.text(game.world.centerX, game.world.centerY + 250,
+			"유료 마에스트로 계정으로 등록하면 광고 화면이 생략됩니다.",
+			this.getFontStyle(32, "#ffce54"))
+			.anchor.set(0.5);
+
+
+		// bottom ui
+		var screenBottomUI = new ScreenBottomUI();
+
+
+		game.time.events.loop(Phaser.Timer.SECOND, this.updateCounter, this);
+	},
+
+	updateCounter: function() {
+		this.counter--;
+		if(this.counter == 0)
+			game.state.start('Start');
+		else
+			this.skipText.text = this.counter + "초 후에 게임 화면으로 넘어갑니다.";
+	},
+
+	getFontStyle: function(fontSize, fillColor) {
+		return { font: fontSize + "px Arial", fill: fillColor, align: "left", boundsAlignH: "left", boundsAlignV: "bottom" };
+	}
+
+}
\ No newline at end of file
diff --git a/src/game/start/main.js b/src/game/start/main.js
index c2677a4..39e9bfe 100644
--- a/src/game/start/main.js
+++ b/src/game/start/main.js
@@ -8,5 +8,11 @@ let game = new Phaser.Game(
 	Phaser.CANVAS, CONTENT_ID
 );
 
+
 game.state.add('Start', Start);
-game.state.start('Start');
+game.state.add('Ads', Ads);
+
+if(isExperiencePlayerAccount())
+	game.state.start('Ads');
+else
+	game.state.start('Start');
diff --git a/src/game/start/start.js b/src/game/start/start.js
index 00a3166..8a81705 100644
--- a/src/game/start/start.js
+++ b/src/game/start/start.js
@@ -32,7 +32,8 @@ var Start = {
 		this.makeStartButton();
 		this.makeRankingButton();
 
-		if(sessionStorageManager.getMaestroAccountType() >= 100) {	// experience account
+		// if(sessionStorageManager.getMaestroAccountType() >= 100) {	// experience account
+		if(isExperiencePlayerAccount() || isExperienceMaestroAccount()) {	// experience account
 			this.printSampleChart();
 			this.announceBox = new AnnounceBox(50, 648);
 			this.announceBox.drawBox("체험 계정에서는 기록이 저장되지 않습니다.");
diff --git a/src/web/client/start.html b/src/web/client/start.html
index 7bb36ac..3bb3927 100644
--- a/src/web/client/start.html
+++ b/src/web/client/start.html
@@ -30,6 +30,7 @@
 		<script src="../../game/lib/announce_box.js"></script>
 
 		<!-- source files -->
+		<script src="../../game/start/Ads.js"></script>
 		<script src="../../game/start/start.js"></script>
 		<script src="../../game/start/main.js"></script>