diff --git a/src/game/license_timer/game.js b/src/game/license_timer/game.js
index 1f4ac71..46fda46 100644
--- a/src/game/license_timer/game.js
+++ b/src/game/license_timer/game.js
@@ -59,16 +59,6 @@ var LicenseTimer = {
 
 		// Timer
 		var timerCenterX = game.world.centerX - 30;
-		var watchPosY = 100;
-		var watchTextStyle = { font: "24px Arial", fill: "#555", align: "center"};
-		this.hourText = game.add.text(timerCenterX - 175, watchPosY, "시간", watchTextStyle);
-		this.hourText.anchor.set(0.5);
-
-		this.minText = game.add.text(timerCenterX, watchPosY, "분", watchTextStyle);
-		this.minText.anchor.set(0.5);
-
-		this.secText = game.add.text(timerCenterX + 170, watchPosY, "초", watchTextStyle);
-		this.secText.anchor.set(0.5);
 
 		var timerTextStyle = { font: "bold 120px Arial", fill: "#fff", align: "center"};
 		this.timerText = game.add.text(timerCenterX, 160, "00:00:00", timerTextStyle);
@@ -80,7 +70,8 @@ var LicenseTimer = {
 		var setting = new RoundRectButtonSetting(0, 0, 0, 0);
 		setting.fontStyle.boundsAlignH = "center";	// left, center. right
 		setting.fontStyle.boundsAlignV = "middle";	// top, middle, bottom
-		setting.strokeWidthPx = 5;
+		setting.strokeWidthPx = 3;
+		setting.roundAmount = 5;
 
 
 		// set timer buttons
@@ -94,6 +85,41 @@ var LicenseTimer = {
 			(function() { console.log("1 hour"); }).bind(this)
 		);
 
+		// modify timer buttons
+		setting.x = timerCenterX - 30;
+		setting.y = 90;
+		setting.width = 50;
+		setting.height = 30;
+		var plus10minButton = new RoundRectButton(
+			setting,
+			null, "+",
+			(function() { console.log("+10 min"); }).bind(this)
+		);
+
+		setting.x = timerCenterX +30;
+		var plus1minButton = new RoundRectButton(
+			setting,
+			null, "+",
+			(function() { console.log("+1 min"); }).bind(this)
+		);
+
+		setting.x = timerCenterX - 30;
+		setting.y = 220;
+		var minus10minButton = new RoundRectButton(
+			setting,
+			null, "-",
+			(function() { console.log("-10 min"); }).bind(this)
+		);
+
+		setting.x = timerCenterX + 30;
+		var minus1minButton = new RoundRectButton(
+			setting,
+			null, "-",
+			(function() { console.log("-1 min"); }).bind(this)
+		);
+
+
+		/*
 		// modify timer buttons
 		setting.x = GAME_SCREEN_SIZE.x - 210;
 		setting.y = 120;
@@ -126,6 +152,7 @@ var LicenseTimer = {
 			null, "-1분",
 			(function() { console.log("-1 min"); }).bind(this)
 		);
+		*/
 	},
 
 	makeStartButtonGroup: function() {