diff --git a/GameObject.ixx b/GameObject.ixx
index 680a0e9..5517880 100644
--- a/GameObject.ixx
+++ b/GameObject.ixx
@@ -41,9 +41,9 @@ public:
         return
         {
             Posi.x - Size.x * Anch.x,
-            Posi.y - Size.y * Anch.y,
-            Posi.x + Size.x * (1.f - Anch.x),
             Posi.y + Size.y * (1.f - Anch.y),
+            Posi.x + Size.x * (1.f - Anch.x),
+            Posi.y - Size.y * Anch.y,
         };
     }
 
diff --git a/MegaEngine.cpp b/MegaEngine.cpp
index f99f70a..80241f2 100644
--- a/MegaEngine.cpp
+++ b/MegaEngine.cpp
@@ -65,12 +65,16 @@ void Game::Update()
         background.OnUpdate(delta);
         score += obs.speed * delta;
         score.OnUpdate(delta);
-        if (isIntersection(steve.getRect(), obs.getRect()))
         {
-            status = End;
-            steve.status = Steve::Dead;
-            steve.imge.rect = Steve::DeadRect;
-            steve.Size = steve.imge.rect.size();
+            auto s_r = steve.getRect();
+            auto o_r = obs.getRect();
+            if (isIntersection(s_r, o_r))
+            {
+                status = End;
+                steve.status = Steve::Dead;
+                steve.imge.rect = Steve::DeadRect;
+                steve.Size = steve.imge.rect.size();
+            }
         }
         break;
     case Game::End:
diff --git a/Obstacle.ixx b/Obstacle.ixx
index d658c8d..948a6a7 100644
--- a/Obstacle.ixx
+++ b/Obstacle.ixx
@@ -29,7 +29,7 @@ export struct Obstacle : GameObject
         { 850,2,952,102 },
         //Qradro Giant Cactus
         { 802,2,952,102 },
-        //
+        // Pterosaur
         { 260,2,352,82 },
         { 352,2,444,82 },
     };
@@ -66,11 +66,11 @@ export struct Obstacle : GameObject
     std::mt19937 random{std::random_device()()};
     void Reset()
     {
-        int index = 14;// random() % 15;
+        int index = random() % 15;
         if (index == 14)
         {
             isCactus = false;
-            Posi.y = 125;
+            Posi.y = 120;
         }
         else
         {
diff --git a/Steve.ixx b/Steve.ixx
index 3314db6..7f5f342 100644
--- a/Steve.ixx
+++ b/Steve.ixx
@@ -21,8 +21,8 @@ export struct Steve : GameObject
     static constexpr Rect LeftRect = { 1942, 2, 2030, 96 };
     static constexpr Rect BigEyeRect = { 2030, 2, 2118, 96 };
     static constexpr Rect DeadRect = { 2122, 2, 2202, 96 };
-    static constexpr Rect CrawlingRightRect = { 2203, 2, 2321, 96 };
-    static constexpr Rect CrawlingLeftRect = { 2321, 2, 2439, 96 };
+    static constexpr Rect CrawlingRightRect = { 2203, 36, 2321, 96 };
+    static constexpr Rect CrawlingLeftRect = { 2321, 36, 2439, 96 };
 
     enum Status { Idle, Running, Jumping, Freefall, Crawling, Dead } status;