diff --git a/melonjs-tutorial/boilerplate-master/data/map/area01.tmx b/melonjs-tutorial/boilerplate-master/data/map/area01.tmx
index 1d1e48e..ef82c20 100644
--- a/melonjs-tutorial/boilerplate-master/data/map/area01.tmx
+++ b/melonjs-tutorial/boilerplate-master/data/map/area01.tmx
@@ -30,7 +30,7 @@
  </imagelayer>
  <layer name="background" width="40" height="15">
   <data encoding="base64">
-   CAAAAAgAAAAAAAAAAAAAACkAAAAtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAACAAAAAgAAAAIAAAABgAAACkAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAIAAAACAAAAAgAAAAIAAAACAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAIAAAACAAAAAgAAAAIAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAIAAAACAAAAAgAAAAIAAAABgAAAAYAAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAApAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAgAAAAtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAYAAAAIAAAABgAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAYAAAAIAAAACAAAAAgAAAAIAAAACAAAABgAAAAZAAAAAAAAAAAAAAAAAAAABgAAAAgAAAAIAAAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAEAAAABAAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAFwAAAAQAAAAEAAAABAAAAAgAAAAtAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFwAAADMAAAAzAAAAMwAAADMAAAAWAAAAAAAAAAAAAAAAAAAAAAAAABgAAAApAAAABgAAAAYAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAACAAAAAgAAAAtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAAQAAAAEAAAABAAAAGAAAAAMAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAAFgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAALAAAAC0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAGAAAACAAAAAgAAAAIAAAACAAAAAgAAAAIAAAALQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAKgAAACoAAAAqAAAAKgAAACoAAAAqAAAAKgAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAEAAAAAAAAAAAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAGAAAAKgAAACoAAAAqAAAAKgAAACoAAAAqAAAAKgAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAAAAAAAAAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAACkAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAAKQAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAA
+   CAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAACAAAAAgAAAAIAAAABgAAACkAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAIAAAACAAAAAgAAAAIAAAACAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAIAAAACAAAAAgAAAAIAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAIAAAACAAAAAgAAAAIAAAABgAAAAYAAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAApAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAgAAAAtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAYAAAAIAAAABgAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAYAAAAIAAAACAAAAAgAAAAIAAAACAAAABgAAAAZAAAAAAAAAAAAAAAAAAAABgAAAAgAAAAIAAAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAEAAAABAAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAABkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAFwAAAAQAAAAEAAAABAAAAAgAAAAtAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFwAAADMAAAAzAAAAMwAAADMAAAAWAAAAAAAAAAAAAAAAAAAAAAAAABgAAAApAAAABgAAAAYAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAAGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAACAAAAAgAAAAtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAAQAAAAEAAAABAAAAGAAAAAMAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAAFgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAALAAAAC0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAGAAAACAAAAAgAAAAIAAAACAAAAAgAAAAIAAAALQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAKgAAACoAAAAqAAAAKgAAACoAAAAqAAAAKgAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsAAAABgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAEAAAAAAAAAAAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABcAAAAGAAAAKgAAACoAAAAqAAAAKgAAACoAAAAqAAAAKgAAABYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAAAAAAAAAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAACkAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAAKQAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAABgAAAAYAAAAGAAAA
   </data>
  </layer>
  <objectgroup color="#9c18a4" name="Entities">
@@ -161,7 +161,7 @@
  </layer>
  <layer name="collision" width="40" height="15" opacity="0.5">
   <data encoding="base64">
-   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
+   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
   </data>
  </layer>
 </map>
diff --git a/melonjs-tutorial/boilerplate-master/js/entities/HUD.js b/melonjs-tutorial/boilerplate-master/js/entities/HUD.js
index 74a9063..222872f 100755
--- a/melonjs-tutorial/boilerplate-master/js/entities/HUD.js
+++ b/melonjs-tutorial/boilerplate-master/js/entities/HUD.js
@@ -23,8 +23,8 @@ game.HUD.Container = me.Container.extend({
     // give a name
     this.name = "HUD";
     
-    // add our child score object at the top left corner
-    this.addChild(new game.HUD.ScoreItem(430, 440));
+    // add our child score object at the lower right corner
+    this.addChild(new game.HUD.ScoreItem(230, 440));
   }
 });
 
@@ -51,6 +51,8 @@ game.HUD.ScoreItem = me.Renderable.extend({
     // local copy of the lives
     this.lives = -1;
 
+    this.coinsNotCollected = -1;
+
     // make sure we use screen coordinates
     this.floating = true;
   },
@@ -62,9 +64,11 @@ game.HUD.ScoreItem = me.Renderable.extend({
     // we don't do anything fancy here, so just
     // return true if the score has been updated
     if (this.score !== game.data.score ||
-        this.lives !== game.data.lives) {
+        this.lives !== game.data.lives ||
+        this.coinsNotCollected != game.data.coinsNotCollected) {
       this.score = game.data.score;
       this.lives = game.data.lives;
+      this.coinsNotCollected = game.data.coinsNotCollected;
       return true;
     }
     return false;
@@ -74,8 +78,9 @@ game.HUD.ScoreItem = me.Renderable.extend({
    * draw the score
    */
   draw : function (context) {
-    this.font.draw(context, game.data.score, this.pos.x + 200, this.pos.y);
-    this.font.draw(context, game.data.lives, this.pos.x, this.pos.y);
+    this.font.draw(context, game.data.coinsNotCollected, this.pos.x, this.pos.y);
+    this.font.draw(context, game.data.score, this.pos.x + 400, this.pos.y);
+    this.font.draw(context, game.data.lives, this.pos.x + 200, this.pos.y);
   }
 
 });
diff --git a/melonjs-tutorial/boilerplate-master/js/entities/entities.js b/melonjs-tutorial/boilerplate-master/js/entities/entities.js
index f69c5f6..2c4e6b4 100755
--- a/melonjs-tutorial/boilerplate-master/js/entities/entities.js
+++ b/melonjs-tutorial/boilerplate-master/js/entities/entities.js
@@ -76,7 +76,6 @@ game.PlayerEntity = me.Entity.extend({
         this.die();
       }
     } else if (response.b.body.collisionType == me.collision.types.ACTION_OBJECT) {
-      // b is a LevelEntity. Indicate our new respawn point.
       game.data.current_level = response.b.nextlevel;
     }
   },
@@ -106,6 +105,7 @@ game.CoinEntity = me.CollectableEntity.extend({
 
   onCollision: function() {
     game.data.score += 3;
+    game.data.coinsNotCollected--;
 
     me.audio.play("cling");
 
diff --git a/melonjs-tutorial/boilerplate-master/js/game.js b/melonjs-tutorial/boilerplate-master/js/game.js
index 0358a77..9c1fa2a 100755
--- a/melonjs-tutorial/boilerplate-master/js/game.js
+++ b/melonjs-tutorial/boilerplate-master/js/game.js
@@ -8,6 +8,8 @@ var game = {
     score : 0,
     // number of lives
     lives : 3,
+    // This is programmatically determined on level loads.
+    coinsNotCollected : 0,
     // current level
     current_level: "area03",
     // reset function
@@ -15,6 +17,7 @@ var game = {
       this.score = 0;
       this.lives = 3;
       this.current_level = "area01";
+      this.coinsNotCollected = 0;
     }
   },
 	
@@ -40,6 +43,14 @@ var game = {
     // Set a callback to run when loading is complete.
     me.loader.onload = this.loaded.bind(this);
 
+    // Set a callback for level loads too.
+    me.game.onLevelLoaded = this.levelLoaded.bind(this);
+
+    // We need to prevent level collisions if you don't have enough
+    // coins.
+    this.oldShouldCollide = me.collision.shouldCollide;
+    me.collision.shouldCollide = this.shouldCollide.bind(this);
+
     // Load the resources.
     me.loader.preload(game.resources);
 
@@ -65,5 +76,25 @@ var game = {
 
     // Start the game.
     me.state.change(me.state.MENU);
+  },
+
+  "levelLoaded" : function(levelName) {
+    // Discover the number of coins that need to be collected to successfully
+    // exit the level.
+    var coins = me.game.world.getChildByName("CoinEntity");
+    game.data.coinsNotCollected = coins.length;
+  },
+
+  "shouldCollide" : function(a, b) {
+    var answer = this.oldShouldCollide(a, b);
+    if (answer === true) {
+      // Do additional checks
+      if (a.name === "mainplayer" && b.name == "me.levelentity") {
+        if (game.data.coinsNotCollected > 0) {
+          return false;
+        }
+      }
+    }
+    return answer;
   }
 };