diff --git a/art/computer/background.png b/art/computer/background.png
index c37bbeb..8ffa940 100644
Binary files a/art/computer/background.png and b/art/computer/background.png differ
diff --git a/world.tscn b/world.tscn
index fe6ddd2..d2690a1 100644
--- a/world.tscn
+++ b/world.tscn
@@ -314,6 +314,15 @@ position = Vector2(1692, -166.40698)
 [node name="Coin11" parent="Tutorial" unique_id=857910277 instance=ExtResource("8_ioo17")]
 position = Vector2(691, 373.18488)
 
+[node name="Coin25" parent="Tutorial" unique_id=822879149 instance=ExtResource("8_ioo17")]
+position = Vector2(348, 1070.3218)
+
+[node name="Coin26" parent="Tutorial" unique_id=744887667 instance=ExtResource("8_ioo17")]
+position = Vector2(914, 1665.0543)
+
+[node name="Coin27" parent="Tutorial" unique_id=232633357 instance=ExtResource("8_ioo17")]
+position = Vector2(1927, 1551.819)
+
 [node name="Coin12" parent="Tutorial" unique_id=1595757142 instance=ExtResource("8_ioo17")]
 position = Vector2(731, 373.18488)
 
@@ -350,6 +359,9 @@ disk_num = 4
 [node name="WallSpike" parent="Tutorial" unique_id=287086441 instance=ExtResource("10_hiqwa")]
 position = Vector2(1325, 629.1956)
 
+[node name="WallSpike6" parent="Tutorial" unique_id=82967982 instance=ExtResource("10_hiqwa")]
+position = Vector2(1256, 1631.576)
+
 [node name="WallSpike2" parent="Tutorial" unique_id=234787573 instance=ExtResource("10_hiqwa")]
 position = Vector2(973, 630.18024)
 rotation = 4.712389
@@ -358,6 +370,10 @@ rotation = 4.712389
 position = Vector2(1596, 1177.6493)
 rotation = 4.712389
 
+[node name="WallSpike5" parent="Tutorial" unique_id=122742691 instance=ExtResource("10_hiqwa")]
+position = Vector2(568, 1633.5453)
+rotation = 4.712389
+
 [node name="WallSpike3" parent="Tutorial" unique_id=419913773 instance=ExtResource("10_hiqwa")]
 position = Vector2(1679, 181.17683)
 rotation = 4.712389