diff --git a/card.js b/card.js
index 0c0a608..dca1639 100644
--- a/card.js
+++ b/card.js
@@ -99,4 +99,17 @@
   MemoryGame.Card.prototype = Object.create(EventDispatcher.prototype);
   MemoryGame.Card.prototype.constructor = MemoryGame.Card;
 
+  /**
+   * Check to see if the given object corresponds with the semantics for
+   * a memory game card.
+   *
+   * @param {object} params
+   * @returns {boolean}
+   */
+  MemoryGame.Card.isValid = function (params) {
+    return (params !== undefined &&
+            params.image !== undefined &&
+            params.image.path !== undefined);
+  };
+
 })(H5P.MemoryGame, H5P.EventDispatcher, H5P.jQuery);
diff --git a/language/fr.json b/language/fr.json
index 96828bb..e00969e 100644
--- a/language/fr.json
+++ b/language/fr.json
@@ -2,7 +2,7 @@
   "semantics": [
     {
       "label": "Cartes",
-      "entity": "une carte",
+      "entity": "carte",
       "field": {
         "label": "Carte",
         "fields": [
@@ -17,19 +17,19 @@
       }
     },
     {
-      "label": "Localisation",
+      "label": "Interface",
       "fields": [
         {
-          "label": "Texte pour une carte à retourner",
-          "default": "Retourner"
+          "label": "Texte pour le nombre de cartes retournées",
+          "default": "Cartes retournées :"
         },
         {
           "label": "Texte pour le temps passé",
-          "default": "Durée écoulée"
+          "default": "Temps écoulé :"
         },
         {
-          "label": "Texte de feedback",
-          "default": "Bon travail!"
+          "label": "Texte de l'appréciation finale",
+          "default": "Bien joué !"
         }
       ]
     }
diff --git a/language/nb.json b/language/nb.json
new file mode 100644
index 0000000..b56939a
--- /dev/null
+++ b/language/nb.json
@@ -0,0 +1,50 @@
+{
+  "semantics": [
+    {
+      "englishLabel": "Cards",
+      "label": "Kort",
+      "englishEntity": "card",
+      "entity": "kort",
+      "field": {
+        "englishLabel": "Card",
+        "label": "Kort",
+        "fields": [
+          {
+            "englishLabel": "Image",
+            "label": "Bilde"
+          },
+          {
+            "englishLabel": "Description",
+            "label": "Beskrivelse",
+            "englishDescription": "A short text that is displayed once the two equal cards are found.",
+            "description": "En kort tekst som vises hver gang et kort-par er funnet."
+          }
+        ]
+      }
+    },
+    {
+      "englishLabel": "Localization",
+      "label": "Oversettelser",
+      "fields": [
+        {
+          "englishLabel": "Card turns text",
+          "label": "Etikett for antall vendte kort",
+          "englishDefault": "Card turns",
+          "default": "Kort vendt"
+        },
+        {
+          "englishLabel": "Time spent text",
+          "label": "Etikett for tid brukt",
+          "englishDefault": "Time spent",
+          "default": "Tid brukt"
+        },
+        {
+          "englishLabel": "Feedback text",
+          "label": "Tilbakemeldingstekst",
+          "englishDefault": "Good work!",
+          "default": "Godt jobbet!"
+        }
+      ]
+    }
+  ]
+}
diff --git a/library.json b/library.json
index 158341f..e11093b 100644
--- a/library.json
+++ b/library.json
@@ -3,7 +3,7 @@
   "description": "See how many cards you can remember!",
   "majorVersion": 1,
   "minorVersion": 1,
-  "patchVersion": 6,
+  "patchVersion": 10,
   "runnable": 1,
   "author": "Amendor AS",
   "license": "MIT",
diff --git a/memory-game.js b/memory-game.js
index 98166b8..845fe3b 100644
--- a/memory-game.js
+++ b/memory-game.js
@@ -36,12 +36,15 @@ H5P.MemoryGame = (function (EventDispatcher, $) {
         var finished = (removed === cards.length);
         var desc = card.getDescription();
 
+        if (finished) {
+           self.triggerXAPIScored(1, 1, 'completed');
+        }
+
         if (desc !== undefined) {
           // Pause timer and show desciption.
           timer.stop();
           popup.show(desc, card.getImage(), function () {
             if (finished) {
-              self.triggerXAPIScored(1, 1, 'completed');
               // Game has finished
               $feedback.addClass('h5p-show');
             }
@@ -52,7 +55,6 @@ H5P.MemoryGame = (function (EventDispatcher, $) {
           });
         }
         else if (finished) {
-          self.triggerXAPIScored(1, 1, 'completed');
           // Game has finished
           timer.stop();
           $feedback.addClass('h5p-show');
@@ -101,11 +103,13 @@ H5P.MemoryGame = (function (EventDispatcher, $) {
 
     // Initialize cards.
     for (var i = 0; i < parameters.cards.length; i++) {
-      // Add two of each card
-      var cardOne = new MemoryGame.Card(parameters.cards[i], id);
-      var cardTwo = new MemoryGame.Card(parameters.cards[i], id);
-      addCard(cardOne, cardTwo);
-      addCard(cardTwo, cardOne);
+      if (MemoryGame.Card.isValid(parameters.cards[i])) {
+        // Add two of each card
+        var cardOne = new MemoryGame.Card(parameters.cards[i], id);
+        var cardTwo = new MemoryGame.Card(parameters.cards[i], id);
+        addCard(cardOne, cardTwo);
+        addCard(cardTwo, cardOne);
+      }
     }
     H5P.shuffleArray(cards);