Added a pause menu with options to continue or quit.

scenes/Levels/level.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=10 format=3 uid="uid://dchj6g2i8ebph"]
+[gd_scene load_steps=11 format=3 uid="uid://dchj6g2i8ebph"]
 
 [ext_resource type="Script" uid="uid://bpxggc8nr6tf6" path="res://scenes/player.gd" id="1_muv8p"]
 [ext_resource type="PackedScene" uid="uid://c5of6aaxop1hl" path="res://scenes/block.tscn" id="2_tc7dm"]
+[ext_resource type="Script" uid="uid://b7fopt7sx74g8" path="res://scenes/Levels/menu.gd" id="3_tc7dm"]
 
 [sub_resource type="PhysicsMaterial" id="PhysicsMaterial_2q6dc"]
 bounce = 0.5
@@ -69,3 +70,43 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.298158, -7.0724635)
 
 [node name="Block2" parent="Starter Blocks" instance=ExtResource("2_tc7dm")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.63255787, 2.596316, -6.980046)
+
+[node name="Menu" type="CanvasLayer" parent="."]
+process_mode = 3
+visible = false
+script = ExtResource("3_tc7dm")
+
+[node name="Control" type="Control" parent="Menu"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+size_flags_horizontal = 4
+size_flags_vertical = 4
+
+[node name="VBoxContainer" type="VBoxContainer" parent="Menu/Control"]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -39.5
+offset_top = -33.0
+offset_right = 39.5
+offset_bottom = 33.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="ContinueButton" type="Button" parent="Menu/Control/VBoxContainer"]
+layout_mode = 2
+text = "Continue"
+
+[node name="QuitButton" type="Button" parent="Menu/Control/VBoxContainer"]
+layout_mode = 2
+text = "Quit"
+
+[connection signal="pressed" from="Menu/Control/VBoxContainer/ContinueButton" to="Menu" method="_on_continue_button_pressed"]
+[connection signal="pressed" from="Menu/Control/VBoxContainer/QuitButton" to="Menu" method="_on_quit_button_pressed"]

scenes/Levels/menu.gd

@@ -0,0 +1,24 @@
+extends CanvasLayer
+
+@onready var pause_menu = $Control
+
+func _input(event):
+	if event.is_action_pressed("ui_cancel"):
+		if get_tree().paused:
+			resume_game()
+		else:
+			pause_game()
+
+func pause_game():
+	get_tree().paused = true
+	visible = true
+
+func resume_game():
+	get_tree().paused = false
+	visible = false
+
+func _on_quit_button_pressed():
+	get_tree().quit()
+
+func _on_continue_button_pressed():
+	resume_game()

scenes/Levels/menu.gd.uid

@@ -0,0 +1 @@
+uid://b7fopt7sx74g8

scenes/player.gd

@@ -1,4 +1,7 @@
 extends RigidBody3D
+# Initially I used a CharacterBody3D, however, I wanted the player to bounce off
+# other objects in the environment and that would have required manual handling
+# of collisions. So that's why we're using a RigidBody3D instead.
 
 const MOVE_SPEED := 8.0
 const ACCELLERATION := 30.0