diff --git a/Assets/Prefabs/Chunks/Corridor_I 5.prefab b/Assets/Prefabs/Chunks/Corridor_I 5.prefab
index d1705b4..d143dd1 100644
--- a/Assets/Prefabs/Chunks/Corridor_I 5.prefab	
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diff --git a/Assets/Prefabs/Views/HeartImage.prefab b/Assets/Prefabs/Views/HeartImage.prefab
index f0c9915..530522a 100644
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diff --git a/Assets/Scenes/GameScene.unity b/Assets/Scenes/GameScene.unity
index bfa0f19..67a6bf6 100644
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+      value: -0
       objectReference: {fileID: 0}
     - target: {fileID: 6634832998035864265, guid: 68d36a24cad029f4a91d5c8e7aa18281, type: 3}
       propertyPath: m_AnchoredPosition.x
@@ -2845,7 +2937,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 6634832998035864265, guid: 68d36a24cad029f4a91d5c8e7aa18281, type: 3}
       propertyPath: m_AnchoredPosition.y
-      value: 0.099853516
+      value: 0.111572266
       objectReference: {fileID: 0}
     - target: {fileID: 6634832998035864265, guid: 68d36a24cad029f4a91d5c8e7aa18281, type: 3}
       propertyPath: m_LocalEulerAnglesHint.x
@@ -2886,7 +2978,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 6190724271798382203, guid: 99d72c8750358d54c8647747f3a9a236, type: 3}
       propertyPath: m_AnchoredPosition.x
-      value: -0.0001373291
+      value: -0.00015258789
       objectReference: {fileID: 0}
     - target: {fileID: 6190724271798382203, guid: 99d72c8750358d54c8647747f3a9a236, type: 3}
       propertyPath: m_AnchoredPosition.y
diff --git a/Assets/ScriptableObjects/PlayerData.asset b/Assets/ScriptableObjects/PlayerData.asset
index 1e50b47..68c57fc 100644
--- a/Assets/ScriptableObjects/PlayerData.asset
+++ b/Assets/ScriptableObjects/PlayerData.asset
@@ -12,7 +12,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 9055f72a604bc3f4ba01bc120f0643d2, type: 3}
   m_Name: PlayerData
   m_EditorClassIdentifier: 
-  <InvincibilityTime>k__BackingField: 3
+  <InvincibilityTime>k__BackingField: 300
   <JumpHeight>k__BackingField: 5.3
   <LaneSwitchSpeed>k__BackingField: 25
   <Speed>k__BackingField: 20
diff --git a/Assets/Scripts/GameSession/GameSession.cs b/Assets/Scripts/GameSession/GameSession.cs
index b58f617..2338848 100644
--- a/Assets/Scripts/GameSession/GameSession.cs
+++ b/Assets/Scripts/GameSession/GameSession.cs
@@ -19,7 +19,7 @@ public class GameSession : MonoBehaviour,IResettable
 
     private void Update()
     {
-        InputTranslator.Tick();
+       InputTranslator.Tick();
     }
 
     private void Init()
diff --git a/Assets/Scripts/Obstacles/Obstacle.cs b/Assets/Scripts/Obstacles/Obstacle.cs
index e33ef3a..b0528d4 100644
--- a/Assets/Scripts/Obstacles/Obstacle.cs
+++ b/Assets/Scripts/Obstacles/Obstacle.cs
@@ -6,9 +6,9 @@ using UnityEngine;
 public class Obstacle : PoolingObject<Obstacle>, IObstacle,IDamageDealer,IResettable
 {
     [field: SerializeField] public bool IsOnAllLanes { get; private set; }
+    [field: SerializeField] public bool IsInevitable { get; private set; }
     public BoxCollider Collider { get; private set; }
-    //public BasePool<Obstacle> OwningPool { private get;  set; }
-
+ 
     private void Awake()
     {
         Collider = GetComponent<BoxCollider>();
@@ -30,9 +30,4 @@ public class Obstacle : PoolingObject<Obstacle>, IObstacle,IDamageDealer,IResett
     {
         target.TakeDamage(amount);
     }
-
-    //public void ReturnToPool()
-    //{
-    //    OwningPool.ReturnToPool(this);
-    //}
 }
diff --git a/Assets/Scripts/Player/States/JumpState.cs b/Assets/Scripts/Player/States/JumpState.cs
index 5a48cc3..4f1ccac 100644
--- a/Assets/Scripts/Player/States/JumpState.cs
+++ b/Assets/Scripts/Player/States/JumpState.cs
@@ -9,7 +9,7 @@ public class JumpState : MovingState
     private float expiredTime = 0;
     private float previousDeltaY = 0;
     private float jumpHeight;
-    private float internalJumpTime = 0.55f;
+    private float internalJumpTime = 0.45f;
     public JumpState(PlayerStateMachine playerStateMachine, AnimationCurve curve) : base(playerStateMachine)
     {
         deltaYCurve = curve;
@@ -41,9 +41,7 @@ public class JumpState : MovingState
         previousDeltaY = deltaY;
         playerSM.VerticalDeltaPosition = diff;
         if (jumpProgress > internalJumpTime)
-        {
-            expiredTime = 0;
-            playerSM.VerticalDeltaPosition = 0;
+        {  
             playerSM.SetState(playerSM.PlayerGroundState);
         }
     }
@@ -52,5 +50,6 @@ public class JumpState : MovingState
         previousDeltaY = 0;
         expiredTime = 0;
         playerSM.VerticalDeltaPosition = 0;
+        playerSM.VerticalDeltaPosition = 0;
     }
 }
diff --git a/Assets/Scripts/Road/ChunkGenerator.cs b/Assets/Scripts/Road/ChunkGenerator.cs
index 2d74c29..d2ccf2c 100644
--- a/Assets/Scripts/Road/ChunkGenerator.cs
+++ b/Assets/Scripts/Road/ChunkGenerator.cs
@@ -10,11 +10,13 @@ public class ChunkGenerator : MonoBehaviour
     
     public Chunk Generate(Chunk chunkToFill)
     {
+        if (ObstaclePools.IsEmpty())
+            return chunkToFill;
         var obstaclePool = ObstaclePools.GetRandomElement();
         var obstacle = obstaclePool.GetFromPool();
         chunkToFill.Obstacles.Add(obstacle);    
         obstacle.transform.SetParent(chunkToFill.transform, true);
-        obstacle.transform.localPosition = chunkToFill.GridPositions.GetRandomElement();
+        obstacle.transform.localPosition = chunkToFill.Grid.GetRandomPosition();
         if (obstacle.IsOnAllLanes)
         {
             obstacle.transform.localPosition = new Vector3(LaneSystem.CenterLane * LaneSystem.LaneWidth, transform.localPosition.y, transform.localPosition.z);
diff --git a/Assets/Scripts/Road/ChunkSpawner.cs b/Assets/Scripts/Road/ChunkSpawner.cs
index 88aa9ab..09cc58b 100644
--- a/Assets/Scripts/Road/ChunkSpawner.cs
+++ b/Assets/Scripts/Road/ChunkSpawner.cs
@@ -18,11 +18,7 @@ public class ChunkSpawner : MonoBehaviour // TODO: ISpawner
         waitBeforeSpawn = new WaitForSeconds(spawnDelay);
         SpawnInitialChunks();
     }
-    private void Update()
-    {
-        if (Input.GetKeyDown(KeyCode.S))
-            Spawn();
-    }
+
     public void SpawnInitialChunks()
     {
         lastChunk = chunkPool.GetFromPool();
diff --git a/Assets/Scripts/Road/Chunks/Chunk.cs b/Assets/Scripts/Road/Chunks/Chunk.cs
index 784e019..80daff5 100644
--- a/Assets/Scripts/Road/Chunks/Chunk.cs
+++ b/Assets/Scripts/Road/Chunks/Chunk.cs
@@ -12,13 +12,11 @@ public abstract class Chunk : PoolingObject<Chunk>, IResettable
     [field: SerializeField] public Transform Begin { get;  private set; } 
     [field: SerializeField] public Transform End { get; private set; }
 
-    [SerializeField] private int gridRowCount;
     public List<Coin> Coins { get; private set; }
     public List<Obstacle> Obstacles { get; private set; }
     public BoxCollider Collider { get; private set; }
-    //public BasePool<Chunk> OwningPool { private get;  set; }
+    public Grid Grid { get; private set; }
 
-    public readonly List<Vector3> GridPositions = new List<Vector3>();
     virtual public void Init(ChunkSpawner spawner)
     {
         this.spawner = spawner;
@@ -28,7 +26,6 @@ public abstract class Chunk : PoolingObject<Chunk>, IResettable
         Collider = GetComponent<BoxCollider>();
         Coins = new List<Coin>();   
         Obstacles = new List<Obstacle>();
-
         InitializeGrid();
     }
 
@@ -36,18 +33,7 @@ public abstract class Chunk : PoolingObject<Chunk>, IResettable
     {
         Vector3 chunkLengthVector = (End.position - Begin.position);
         float chunkLength = chunkLengthVector.magnitude;
-        float rowLength = chunkLength / gridRowCount;
-        Debug.DrawLine(Vector3.zero, new Vector3(0, 5, 0), Color.red);
-        foreach (var lane in LaneSystem.Instance.Lanes)
-        {
-            float lanePosition = lane * LaneSystem.Instance.LaneWidth;
-            for (int i = 0; i < gridRowCount; i++)
-            {
-                Vector3 gridPosition = new Vector3(lanePosition, 0, i * rowLength);
-                Debug.DrawLine(gridPosition, Vector3.up* 100,Color.red,500);    
-                GridPositions.Add(gridPosition);
-            }
-        }
+        Grid = new Grid(chunkLength);
     }
 
     public void ResetToDefault()
@@ -82,19 +68,4 @@ public abstract class Chunk : PoolingObject<Chunk>, IResettable
     private void ChangeRotationBasedOnPreviousChunk(Chunk previousChunk)
     {
     }
-
-    //public void ReturnToPool()
-    //{
-    //    OwningPool.ReturnToPool(this);
-    //}
-
-    //public void GetOwningPool<T>(BasePool<T> pool) where T : MonoBehaviour, IPoolable
-    //{
-    //    throw new NotImplementedException();
-    //}
-
-    //public void SetOwningPool<T>(BasePool<T> pool) where T : MonoBehaviour, IPoolable
-    //{
-    //    throw new NotImplementedException();
-    //}
 }
diff --git a/Assets/Scripts/Road/Chunks/Grid.cs b/Assets/Scripts/Road/Chunks/Grid.cs
index 7bacb93..9a8c263 100644
--- a/Assets/Scripts/Road/Chunks/Grid.cs
+++ b/Assets/Scripts/Road/Chunks/Grid.cs
@@ -1,21 +1,28 @@
 using System.Collections;
+using System.Collections.Generic;
 using UnityEngine;
 
-namespace Assets.Scripts.Road.Chunks
+public class Grid 
 {
-    public class Grid : MonoBehaviour
+    public readonly List<Vector3> GridPositions = new List<Vector3>();
+    private int gridRowCount;
+
+    public Grid(float gridLength)
     {
-
-        // Use this for initialization
-        void Start()
+        gridRowCount = 1;
+        float rowLength = gridLength / gridRowCount;
+        foreach (var lane in LaneSystem.Instance.Lanes)
         {
-
-        }
-
-        // Update is called once per frame
-        void Update()
-        {
-
+            float lanePosition = lane * LaneSystem.Instance.LaneWidth;
+            for (int i = 0; i < gridRowCount; i++)
+            {
+                Vector3 gridPosition = new Vector3(lanePosition, 0, i * rowLength);
+                GridPositions.Add(gridPosition);
+            }
         }
     }
-}
\ No newline at end of file
+    public Vector3 GetRandomPosition()
+    {
+       return GridPositions.GetRandomElement();   
+    }
+}