diff --git a/js/states/GameScreen.js b/js/states/GameScreen.js
index db2195e..a8efed2 100644
--- a/js/states/GameScreen.js
+++ b/js/states/GameScreen.js
@@ -154,6 +154,7 @@ GameScreen.prototype.updateOnce = function () {
         if (this.board.state == Board.ENDED) {
         var me = this;
         if (promptCallback === doesNothing) {
+            me.saveScore(me.board.score);
             alertBox("Time's up\nYour score: " + me.board.score + "\nPress OK to replay", function () {
                 me.state.start('MainMenu');
             });
@@ -402,3 +403,19 @@ GameScreen.prototype.shutdown = function () {
     window.board = null;
     this.effectSprites = [];
 };
+
+GameScreen.prototype.saveScore = function (score) {
+    if (this.board.debug.autoSwipe) return ;
+    try {
+        var xp = +localStorage.ShapeClear_xp;
+        if (!xp) xp = 0;
+        xp += Math.floor(score / 10);
+        localStorage.ShapeClear_xp = xp;
+        var times = +localStorage.ShapeClear_played;
+        if (!times) times = 0;
+        localStorage.ShapeClear_played = times + 1;
+    }
+    catch (x) {
+        ;
+    }
+};
diff --git a/js/states/MainMenu.js b/js/states/MainMenu.js
index 2338a79..07bc4f6 100644
--- a/js/states/MainMenu.js
+++ b/js/states/MainMenu.js
@@ -36,10 +36,19 @@ MainMenu.prototype.create = function () {
     this.title.anchor.set(0.5, 0.5);
     this.title.inputEnabled = true;
     this.title.events.onInputUp.add(function () {
+        var xp = localStorage.ShapeClear_xp || 0;
+        var times = localStorage.ShapeClear_played || 0;
+        var lv = 1;
+        var req;
+        while (lv < 50 && xp > (req = Math.floor(prank(lv+1, 40)) * 10)) {
+            lv++;
+        }
         alertBox(
           "Copyright (c) 2016~2018 Yi-Feng Chen(陳羿豐)\n" +
           "Licensed under MIT license\n" +
-          "This game uses Phaser game engine"
+          "This game uses Phaser game engine\n" +
+          "Lv. " + lv + " xp: " + xp + "/" + req + "\n" +
+          "You played " + times + " times"
         );
         Debug.createSpecial ^= 1;
     }, this);