diff --git a/Level_01.tscn b/Level_01.tscn
index d1afd54..1c5982b 100644
--- a/Level_01.tscn
+++ b/Level_01.tscn
@@ -17,7 +17,7 @@ cell_scale = 1.0
 collision_layer = 1
 collision_mask = 1
 data = {
-"cells": PoolIntArray( 0, 0, 1441792, 65534, 0, 1441792, 65535, 0, 1441792, 0, 65534, 1441792, 65534, 65534, 1441792, 65535, 65534, 1441792, 0, 65535, 1441792, 65534, 65535, 1441792 )
+"cells": PoolIntArray( 0, 0, 1612054528, 65534, 0, 1441792, 65535, 0, 1441792, 0, 65534, 1612054528, 65534, 65534, 1441792, 65535, 65534, 1441792, 0, 65535, 1441792, 65534, 65535, 1441792 )
 }
 _sections_unfolded = [ "Cell", "Collision", "Transform", "Visibility" ]
 __meta__ = {
diff --git a/MeshLibrary.tscn b/MeshLibrary.tscn
index 5966c6b..6f85ffd 100644
--- a/MeshLibrary.tscn
+++ b/MeshLibrary.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=6 format=2]
+[gd_scene load_steps=7 format=2]
 
 [sub_resource type="CubeMesh" id=1]
 
@@ -59,6 +59,10 @@ proximity_fade_enable = false
 distance_fade_enable = false
 _sections_unfolded = [ "Albedo" ]
 
+[sub_resource type="BoxShape" id=6]
+
+extents = Vector3( 1, 1, 1 )
+
 [sub_resource type="CubeMesh" id=3]
 
 size = Vector3( 2, 2, 2 )
@@ -79,7 +83,7 @@ void fragment() {
 render_priority = 0
 shader = SubResource( 4 )
 
-[node name="Spatial" type="Spatial"]
+[node name="Spatial" type="Spatial" index="0"]
 
 [node name="MeshSpatial" type="MeshInstance" parent="." index="0"]
 
@@ -98,6 +102,23 @@ skeleton = NodePath("..")
 material/0 = SubResource( 2 )
 _sections_unfolded = [ "material" ]
 
+[node name="StaticBody" type="StaticBody" parent="MeshSpatial" index="0"]
+
+input_ray_pickable = true
+input_capture_on_drag = false
+collision_layer = 1
+collision_mask = 1
+friction = 1.0
+bounce = 0.0
+constant_linear_velocity = Vector3( 0, 0, 0 )
+constant_angular_velocity = Vector3( 0, 0, 0 )
+_sections_unfolded = [ "Collision" ]
+
+[node name="CollisionShape" type="CollisionShape" parent="MeshSpatial/StaticBody" index="0"]
+
+shape = SubResource( 6 )
+disabled = false
+
 [node name="Camera" type="Camera" parent="." index="1"]
 
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 10 )
diff --git a/Player.gd b/Player.gd
index 9c7d4f7..5255edf 100644
--- a/Player.gd
+++ b/Player.gd
@@ -1,11 +1,14 @@
 extends KinematicBody
 
+const norm_gravity = -80
 var velocity = Vector3()
+const MAX_SLOPE_ANGLE = 60
 
 func _ready():
 	print("player init")
 
 func _physics_process(delta):
+	# Keyboard input
 	var direction = Vector3()
 	
 	if Input.is_action_pressed("ui_up"):
@@ -20,9 +23,15 @@ func _physics_process(delta):
 	direction.y = 0
 	direction = direction.normalized()
 	
-	var speed = 0.2
+	# Speep
+	var speed = 2.0
 	direction *= speed
-	self.translate(direction)
+	
+	# Gravity
+	direction.y = norm_gravity * delta
+	
+	# Collision
+	velocity = move_and_slide(direction, Vector3(0,1,0), 0.05, 4, deg2rad(MAX_SLOPE_ANGLE))
 
 func _process(delta):
 	# Called every frame. Delta is time since last frame.
diff --git a/mlib.meshlib b/mlib.meshlib
index 6b0bc8b..a4ee3e0 100644
Binary files a/mlib.meshlib and b/mlib.meshlib differ