diff --git a/libstormgames.py b/libstormgames.py
index 82d82ad..dcdd3f6 100755
--- a/libstormgames.py
+++ b/libstormgames.py
@@ -179,8 +179,8 @@ def obj_play(sounds, soundName, playerPos, objPos):
         return None
     distance = playerPos - objPos
     angle = math.radians(distance * 5)
-    left = math.sqrt(2)/2.0 * (math.cos(angle) - math.sin(angle))
-    right = math.sqrt(2)/2.0 * (math.cos(angle) + math.sin(angle))
+    left = math.sqrt(2)/2.0 * (math.cos(angle) + math.sin(angle))
+    right = math.sqrt(2)/2.0 * (math.cos(angle) - math.sin(angle))
     if left < 0:
         left *= -1
     if right < 0:
@@ -199,8 +199,8 @@ def obj_update(x, playerPos, objPos):
         return None
     distance = playerPos - objPos
     angle = math.radians(distance * 5)
-    left = math.sqrt(2)/2.0 * (math.cos(angle) - math.sin(angle))
-    right = math.sqrt(2)/2.0 * (math.cos(angle) + math.sin(angle))
+    left = math.sqrt(2)/2.0 * (math.cos(angle) + math.sin(angle))
+    right = math.sqrt(2)/2.0 * (math.cos(angle) - math.sin(angle))
     if left < 0:
         left *= -1
     if right < 0:
@@ -318,6 +318,7 @@ def learn_sounds(sounds):
 
 def game_menu(sounds, *options):
     loop = True
+    pygame.mixer.stop()
     if pygame.mixer.music.get_busy():
         pygame.mixer.music.unpause()
     else: