diff --git a/.idea/modules.xml b/.idea/modules.xml
index 7d95eba..5d35779 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,8 +2,8 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
+      <module fileurl="file://$PROJECT_DIR$/Hangman-game.iml" filepath="$PROJECT_DIR$/Hangman-game.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
-      <module fileurl="file://$PROJECT_DIR$/hangman-game.iml" filepath="$PROJECT_DIR$/hangman-game.iml" />
     </modules>
   </component>
 </project>
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index a266e3e..0672615 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@ android {
     buildToolsVersion "27.0.3"
     defaultConfig {
         applicationId "net.DeltaWings.Android.Hangman"
-        minSdkVersion 19
+        minSdkVersion 21
         targetSdkVersion 27
         versionCode 1
         versionName "1.0"
diff --git a/app/src/main/java/net/DeltaWings/Android/Hangman/MainActivity.java b/app/src/main/java/net/DeltaWings/Android/Hangman/MainActivity.java
index be5918a..9a3b36a 100644
--- a/app/src/main/java/net/DeltaWings/Android/Hangman/MainActivity.java
+++ b/app/src/main/java/net/DeltaWings/Android/Hangman/MainActivity.java
@@ -11,6 +11,8 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.animation.Animation;
+import android.view.animation.AnimationUtils;
 import android.widget.Toast;
 
 import net.DeltaWings.Android.Hangman.settings.SettingActivity;
diff --git a/app/src/main/res/anim/bounce.xml b/app/src/main/res/anim/bounce.xml
new file mode 100644
index 0000000..9abd7b4
--- /dev/null
+++ b/app/src/main/res/anim/bounce.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <scale
+        android:duration="2000"
+        android:fromXScale="0.3"
+        android:toXScale="1.0"
+        android:fromYScale="0.3"
+        android:toYScale="1.0"
+        android:pivotX="50%"
+        android:pivotY="50%" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/cycle.xml b/app/src/main/res/anim/cycle.xml
new file mode 100644
index 0000000..0fd194c
--- /dev/null
+++ b/app/src/main/res/anim/cycle.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+                   android:cycles="4" />
\ No newline at end of file
diff --git a/app/src/main/res/anim/shake.xml b/app/src/main/res/anim/shake.xml
new file mode 100644
index 0000000..e9a2c88
--- /dev/null
+++ b/app/src/main/res/anim/shake.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rotate xmlns:android="http://schemas.android.com/apk/res/android"
+        android:duration="100"
+        android:fromDegrees="-5"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:repeatCount="10"
+        android:repeatMode="reverse"
+        android:toDegrees="5" />
\ No newline at end of file
diff --git a/app/src/main/res/drawable/btn_light.xml b/app/src/main/res/drawable/btn_light.xml
new file mode 100644
index 0000000..66bf142
--- /dev/null
+++ b/app/src/main/res/drawable/btn_light.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@drawable/ripple" />
+</layer-list>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ripple.xml b/app/src/main/res/drawable/ripple.xml
new file mode 100644
index 0000000..4aee894
--- /dev/null
+++ b/app/src/main/res/drawable/ripple.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+
+        android:color="?attr/colorAccent"
+        android:min
+    >
+
+    <item>
+        <shape xmlns:android="http://schemas.android.com/apk/res/android"
+               android:shape="rectangle">
+
+            <corners android:radius="6dp"/>
+
+            <solid android:color="?attr/colorPrimary"/>
+        </shape>
+    </item>
+</ripple>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 50aa582..9e28dc7 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -40,8 +40,10 @@
             android:layout_centerHorizontal="true"
             android:layout_marginTop="64dp"
             android:layout_weight="1"
+            android:background='@drawable/ripple'
             android:elevation="0dp"
             android:text="@string/singleplayer"
+            android:textColor="@color/White"
             android:textAppearance="@style/TextAppearance.AppCompat"
             app:layout_constraintTop_toBottomOf="@+id/imageView"
             tools:layout_editor_absoluteX="142dp"/>
@@ -55,6 +57,8 @@
             android:layout_marginTop="64dp"
             android:layout_weight="1"
             android:text="@string/multiplayer"
+            android:background='@drawable/ripple'
+            android:textColor="@color/White"
             android:textAppearance="@style/TextAppearance.AppCompat"
             app:layout_constraintTop_toBottomOf="@+id/singleplayerButton"
             tools:layout_editor_absoluteX="146dp"/>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 6437e0b..e84b792 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#062988</color>
-    <color name="colorPrimaryDark">#303F9F</color>
-    <color name="colorAccent">#111984</color>
     <color name="Blue">#2196f3</color>
     <color name="DarkBlue">#0d47a1</color>
     <color name="Indigo">#3f51b5</color>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 2c992af..c9b90ca 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -28,6 +28,7 @@
 
     
     <attr name="drawable_people" format="reference"/>
+    <attr name="colorPrimary" format="reference"/>
     <attr name="drawable_person" format="reference"/>
 
 </resources>