diff --git a/app/src/androidTest/java/com/hyperling/apps/games/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/hyperling/apps/games/ExampleInstrumentedTest.java
deleted file mode 100755
index 85a88c5..0000000
--- a/app/src/androidTest/java/com/hyperling/apps/games/ExampleInstrumentedTest.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.hyperling.apps.games;
-
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.*;
-
-/**
- * Instrumentation test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() throws Exception {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getTargetContext();
-
-        assertEquals("apps.hyperling.com.platformer", appContext.getPackageName());
-    }
-}
diff --git a/app/src/main/java/com/hyperling/apps/games/AdsHelper.java b/app/src/main/java/com/hyperling/apps/games/AdsHelper.java
deleted file mode 100755
index ed50f9b..0000000
--- a/app/src/main/java/com/hyperling/apps/games/AdsHelper.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.hyperling.apps.games;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.view.View;
-
-import com.google.android.gms.ads.AdRequest;
-import com.google.android.gms.ads.AdView;
-import com.google.android.gms.ads.MobileAds;
-
-/**
- * Created by ling on 12/26/16.
- */
-
-public class AdsHelper {
-
-    // To be called in onResume in Activities
-    public static void toggleAds(SharedPreferences sharedPreferences, String adsKey, Context applicationContext, AdView mAdView){
-        // Enable ads?
-        boolean adsEnabled = sharedPreferences.getBoolean(adsKey, false);
-        if (adsEnabled) {
-            mAdView.setVisibility(View.VISIBLE);
-            MobileAds.initialize(applicationContext, "ca-app-pub-3940256099942544~3347511713");
-            AdRequest adRequest = new AdRequest.Builder()
-                    .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
-                    .addTestDevice("C6A494DC6E7C9AC29102694D48487084") // Nexus 7
-                    .addTestDevice("6545BCC9B60A394005546783687339B7") // Moto G
-                    .build();
-            mAdView.loadAd(adRequest);
-        }
-        else{
-            mAdView.setVisibility(View.GONE);
-        }
-
-    }
-}
diff --git a/app/src/test/java/com/hyperling/apps/games/ExampleUnitTest.java b/app/src/test/java/com/hyperling/apps/games/ExampleUnitTest.java
deleted file mode 100755
index e998d9d..0000000
--- a/app/src/test/java/com/hyperling/apps/games/ExampleUnitTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.hyperling.apps.games;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() throws Exception {
-        assertEquals(4, 2 + 2);
-    }
-}
\ No newline at end of file