diff --git a/project/data/levels/level-01.csv b/project/data/levels/level-01.csv
index f87f64e..3acdcf6 100644
--- a/project/data/levels/level-01.csv
+++ b/project/data/levels/level-01.csv
@@ -1,17 +1,17 @@
 #,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#
-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L,,,,,M,M,,,,,,,,,,,,,,,,,,C,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,+,+,+,+,S,S,S,S,S,+,+,+,+,+,S,S,S,S,S,+,+,+,+,+,S,S,S,S,S,+,+,+,+,+,+,+,+,+,#
-#,#,S,,,,,,,,,,,,,,,,,,,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,#,S,,,,,,,,,,,,,,,,,,,,,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L,,,,,,,,,,,,,,,,,,,,,,,,C,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,+,+,+,+,S,S,S,S,S,+,+,+,+,+,S,S,S,S,S,+,+,+,+,+,S,S,S,S,S,+,+,+,+,+,+,+,+,+,#
+#,#,>,,,,,,,,,,,,,,,,,,,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
+#,#,>,,,,,,,,,,,,,,,,,,,,,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,#,,,,,,,,,,,,,,,,,,,,,,G,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
-#,,,,,,,,,,,,,,,M,,,,,,M,,,,,,,,,,,,,,,,,M,,,,,,M,,,,,,,,,,,,,,,#
+#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,,,,,,,,,,,+,+,+,+,+,+,+,+,+,+,+,+,+,+,+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
 #,L,,,,,,,,,,#,#,#,#,#,#,#,#,#,#,#,#,#,#,#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,#
diff --git a/project/data/levels/levels.json b/project/data/levels/levels.json
index 186d256..bd8517f 100644
--- a/project/data/levels/levels.json
+++ b/project/data/levels/levels.json
@@ -1,7 +1,7 @@
-[
+  [
   {
     "name": "0-tutorial",
-    "theme": "tutorial",
+    "theme": "cave",
     "abilities": [
     ],
     "file": "0-tutorial.csv"
diff --git a/project/data/sprites/cave_block_bottom.png b/project/data/sprites/cave_block_bottom.png
index 5353e7b..68ea4e5 100644
Binary files a/project/data/sprites/cave_block_bottom.png and b/project/data/sprites/cave_block_bottom.png differ
diff --git a/project/data/sprites/cave_block_full.png b/project/data/sprites/cave_block_full.png
index 4e3c524..64003d2 100644
Binary files a/project/data/sprites/cave_block_full.png and b/project/data/sprites/cave_block_full.png differ
diff --git a/project/data/sprites/cave_block_left.png b/project/data/sprites/cave_block_left.png
index 0102480..171554b 100644
Binary files a/project/data/sprites/cave_block_left.png and b/project/data/sprites/cave_block_left.png differ
diff --git a/project/data/sprites/cave_block_right.png b/project/data/sprites/cave_block_right.png
index c1876bb..8b5cd87 100644
Binary files a/project/data/sprites/cave_block_right.png and b/project/data/sprites/cave_block_right.png differ
diff --git a/project/data/sprites/cave_block_top.png b/project/data/sprites/cave_block_top.png
index a8c4b5d..e54f6d6 100644
Binary files a/project/data/sprites/cave_block_top.png and b/project/data/sprites/cave_block_top.png differ
diff --git a/project/data/sprites/cave_block_top_left.png b/project/data/sprites/cave_block_top_left.png
index 0ab465b..6b3dfc1 100644
Binary files a/project/data/sprites/cave_block_top_left.png and b/project/data/sprites/cave_block_top_left.png differ
diff --git a/project/data/sprites/cave_block_top_right.png b/project/data/sprites/cave_block_top_right.png
index 02a47d5..7a5d9ff 100644
Binary files a/project/data/sprites/cave_block_top_right.png and b/project/data/sprites/cave_block_top_right.png differ
diff --git a/project/data/sprites/sprites.json b/project/data/sprites/sprites.json
index fc2a709..7987d6a 100644
--- a/project/data/sprites/sprites.json
+++ b/project/data/sprites/sprites.json
@@ -586,6 +586,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
@@ -599,6 +615,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
@@ -612,6 +644,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
@@ -638,6 +686,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
@@ -651,6 +715,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
@@ -664,6 +744,22 @@
         ],
         "width": 12,
         "height": 12
+      },
+      {
+        "id": "2",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
+      },
+      {
+        "id": "3",
+        "delays": [
+          1
+        ],
+        "width": 12,
+        "height": 12
       }
     ]
   },
diff --git a/project/physics/sprites/PlayerSprite.py b/project/physics/sprites/PlayerSprite.py
index 6e80bab..9e4a971 100644
--- a/project/physics/sprites/PlayerSprite.py
+++ b/project/physics/sprites/PlayerSprite.py
@@ -16,7 +16,7 @@ class PlayerSprite(DynamicSprite):
 
         self.deceleration_horizontal_air = 0.2
         self.deceleration_horizontal_ground = 0.4
-        self.gravity = 9.81 / 10
+        self.gravity = 9.81 / 11
 
         self.max_motion_horizontal_via_input = 5
         self.id = 'player'
@@ -41,9 +41,9 @@ class PlayerSprite(DynamicSprite):
         if tick_data.key_manager.is_keymap_down(KeyManager.KEY_UP):
             if self.jump_time < 0 and self.get_collides_with_direction(CollisionDirection.BOTTOM):
                 self.jump_time = self.allowed_jump_time
-                self.motion = (self.motion[0], self.motion[1] - 6)
+                self.motion = (self.motion[0], self.motion[1] - 7)
             if self.jump_time >= 0:
-                self.motion = (self.motion[0], self.motion[1] - 0.55)
+                self.motion = (self.motion[0], self.motion[1] - 0.6)
         if self.jump_time >= 0:
             self.jump_time -= 1