diff --git a/app/main.rb b/app/main.rb
index 0ae0bda..9f2d5a1 100644
--- a/app/main.rb
+++ b/app/main.rb
@@ -1,7 +1,14 @@
 require "app/bounce.rb"
 
 BOUNCE_ACCL = 1.02
-GRAVITY = 0.9
+GRAVITY = 0.5
+
+MIN_GRAVITY = 0.1
+MAX_GRAVITY = 2.0
+
+MIN_BOUNCE = 1.0
+MAX_BOUNCE = 1.1
+
 CX = 636
 CY = 399
 CR = 205
@@ -13,8 +20,8 @@ def tick args
   cy = CY
   cr = CR
   # pause
-  args.state.paused = false if args.state.paused.nil?
-  if args.state.ball.nil?
+  if args.state.paused.nil?
+    args.state.paused = true
     args.state.ball = {
       x: 500,
       y: 500,
@@ -23,11 +30,24 @@ def tick args
       x: 0,
       y: 0
     }
+    args.state.bounce = BOUNCE_ACCL
+    args.state.gravity = GRAVITY
   end
 
   # INPUT
   if args.inputs.keyboard.key_up.space
     args.state.paused = !args.state.paused
+    if !args.state.paused
+      #REINIT with inputs
+      args.state.ball = {
+        x: 500+Math.rand(150),
+        y: 400+Math.rand(50),
+      }
+      args.state.ball_vector = {
+        x: 0,
+        y: 0
+      }
+    end
   end
 
   # LOOP
@@ -49,6 +69,9 @@ def tick args
       new_move_x, new_move_y = reflection_vector(x,y,cx,cy,move_x,move_y)
       args.state.ball_vector[:x] = new_move_x * BOUNCE_ACCL
       args.state.ball_vector[:y] = new_move_y * BOUNCE_ACCL
+      # play sound
+      sound = Math.rand(3)+1
+      args.outputs.sounds << "sounds/bounce#{sound}.wav"
     end
 
     # move the ball
@@ -78,22 +101,42 @@ def tick args
   # RENDER
   #
   # BG
+  bg = args.state.paused ? 'sprites/BG1_menu.png' : 'sprites/BG1.png'
   args.outputs.sprites << {
     x: 0,
     y: 0,
     w: 1280,
     h: 720,
-    path: 'sprites/BG1.png' }
+    path: bg }
 
   if  args.state.paused
+    # Render menu
     args.outputs.labels  << [640, 40, "Game is paused. Press <space> to continue", 4, 1]
+    # min_x = 440
+    # mid = 615
+    # max_x = 780
+    args.outputs.sprites << {
+      x: 615,
+      y: 445,
+      w: 32,
+      h: 32,
+      path: 'sprites/slider.png'
+    }
+    args.outputs.sprites << {
+      x: 615,
+      y: 325,
+      w: 32,
+      h: 32,
+      path: 'sprites/slider.png'
+    }
   end
 
   # BALL
+
   args.outputs.sprites << {
     x: args.state.ball[:x]-16,
     y: args.state.ball[:y]-16,
     w: 32,
     h: 32,
-    path: 'sprites/ball.png' }
+    path: 'sprites/ball.png' } if !args.state.paused
 end
diff --git a/sounds/bounce1.wav b/sounds/bounce1.wav
new file mode 100644
index 0000000..932313a
Binary files /dev/null and b/sounds/bounce1.wav differ
diff --git a/sounds/bounce2.wav b/sounds/bounce2.wav
new file mode 100644
index 0000000..50239c9
Binary files /dev/null and b/sounds/bounce2.wav differ
diff --git a/sounds/bounce3.wav b/sounds/bounce3.wav
new file mode 100644
index 0000000..49f82fa
Binary files /dev/null and b/sounds/bounce3.wav differ
diff --git a/sprites/BG1_menu.png b/sprites/BG1_menu.png
new file mode 100644
index 0000000..a297a74
Binary files /dev/null and b/sprites/BG1_menu.png differ
diff --git a/sprites/slider.png b/sprites/slider.png
new file mode 100644
index 0000000..bc6d970
Binary files /dev/null and b/sprites/slider.png differ
diff --git a/sprites/slider@3.png b/sprites/slider@3.png
new file mode 100644
index 0000000..3cc57c1
Binary files /dev/null and b/sprites/slider@3.png differ