diff --git a/Assets/Sprites/Characters/base.ase b/Assets/Sprites/Characters/base.ase
index ed5e1da..ac8c457 100644
Binary files a/Assets/Sprites/Characters/base.ase and b/Assets/Sprites/Characters/base.ase differ
diff --git a/Assets/Sprites/Characters/doc.ase b/Assets/Sprites/Characters/doc.ase
index b20a9be..b5712d2 100644
Binary files a/Assets/Sprites/Characters/doc.ase and b/Assets/Sprites/Characters/doc.ase differ
diff --git a/Assets/Sprites/Characters/doc.png b/Assets/Sprites/Characters/doc.png
index d537e24..6b94ad1 100644
Binary files a/Assets/Sprites/Characters/doc.png and b/Assets/Sprites/Characters/doc.png differ
diff --git a/Assets/Sprites/Characters/forsen2.ase b/Assets/Sprites/Characters/forsen2.ase
index 88e2849..3e5650c 100644
Binary files a/Assets/Sprites/Characters/forsen2.ase and b/Assets/Sprites/Characters/forsen2.ase differ
diff --git a/Assets/Sprites/Characters/forsen2.png b/Assets/Sprites/Characters/forsen2.png
index 5a08090..94ba793 100644
Binary files a/Assets/Sprites/Characters/forsen2.png and b/Assets/Sprites/Characters/forsen2.png differ
diff --git a/Assets/Sprites/Characters/velcuz.ase b/Assets/Sprites/Characters/velcuz.ase
new file mode 100644
index 0000000..b258fc2
Binary files /dev/null and b/Assets/Sprites/Characters/velcuz.ase differ
diff --git a/Assets/Sprites/arena-tileset.ase b/Assets/Sprites/arena-tileset.ase
index 0c50590..1f58db8 100644
Binary files a/Assets/Sprites/arena-tileset.ase and b/Assets/Sprites/arena-tileset.ase differ
diff --git a/Assets/Sprites/forsenbussin.ase b/Assets/Sprites/forsenbussin.ase
new file mode 100644
index 0000000..9792dd8
Binary files /dev/null and b/Assets/Sprites/forsenbussin.ase differ
diff --git a/Scenes/Maps/Arena.tscn b/Scenes/Maps/Arena.tscn
index d575289..cf59744 100644
--- a/Scenes/Maps/Arena.tscn
+++ b/Scenes/Maps/Arena.tscn
@@ -252,7 +252,7 @@ physics_layer_0/collision_layer = 1
 sources/2 = SubResource("TileSetAtlasSource_5yxvt")
 sources/0 = SubResource("TileSetAtlasSource_fcd6d")
 
-[sub_resource type="ShaderMaterial" id="ShaderMaterial_i75i0"]
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_uhsxa"]
 resource_local_to_scene = true
 shader = ExtResource("5_h8k5p")
 shader_parameter/color = Quaternion(1, 1, 1, 1)
@@ -344,7 +344,7 @@ visible = false
 position = Vector2(120, -112)
 
 [node name="Doc" parent="Entities" index="18" instance=ExtResource("4_ej0f3")]
-material = SubResource("ShaderMaterial_i75i0")
+material = SubResource("ShaderMaterial_uhsxa")
 
 [node name="PointLight2D" type="PointLight2D" parent="Entities" index="19"]
 position = Vector2(168, -42)
diff --git a/State/Character/NPCIdleState.cs b/State/Character/NPCIdleState.cs
index 910b978..f41ddb1 100644
--- a/State/Character/NPCIdleState.cs
+++ b/State/Character/NPCIdleState.cs
@@ -17,9 +17,9 @@ public partial class NPCIdleState : NPCState
         return null;
     }
 
-    public override IState<CharacterState> Enter(IState<CharacterState> previousState)
+    public override IState<CharacterState> Enter(IState<CharacterState> prev)
     {
-        Character.MovementAnimation.Play("idle");
-        return base.Enter(previousState);
+        Character.MovementAnimation?.Play("idle");
+        return base.Enter(prev);
     }
 }