diff --git a/addons/escoria-core/game/core-scripts/behaviors/esc_movable.gd b/addons/escoria-core/game/core-scripts/behaviors/esc_movable.gd
index e6a563f1..e83160cd 100644
--- a/addons/escoria-core/game/core-scripts/behaviors/esc_movable.gd
+++ b/addons/escoria-core/game/core-scripts/behaviors/esc_movable.gd
@@ -372,7 +372,7 @@ func _get_dir_deg(deg: int, animations: ESCAnimationResource) -> int:
 	# It's an error to have the animations misconfigured
 	if dir == -1:
 		escoria.logger.report_errors(
-			"escitem.gd:_get_dir_deg()",
+			"esc_movable.gd:_get_dir_deg()",
 			["No direction found for " + str(deg)]
 		)
 	
diff --git a/addons/escoria-core/game/core-scripts/esc/commands/change_scene.gd b/addons/escoria-core/game/core-scripts/esc/commands/change_scene.gd
index 6d5de8be..65fb6e29 100644
--- a/addons/escoria-core/game/core-scripts/esc/commands/change_scene.gd
+++ b/addons/escoria-core/game/core-scripts/esc/commands/change_scene.gd
@@ -68,7 +68,8 @@ func run(command_params: Array) -> int:
 			and (
 				not escoria.globals_manager.get_global("ESC_LAST_SCENE").empty()
 				or (
-					escoria.event_manager.get_running_event("_front").name \
+					escoria.event_manager.get_running_event("_front") != null \
+					and escoria.event_manager.get_running_event("_front").name \
 						in ["newgame", "exit_scene", "room_selector"]
 						and escoria.globals_manager.get_global(
 							"ESC_LAST_SCENE"
@@ -129,6 +130,7 @@ func run(command_params: Array) -> int:
 	var room_scene = res_room.instance()
 	if room_scene:
 		if command_params[1] \
+				and escoria.event_manager.get_running_event("_front") != null \
 				and escoria.event_manager.get_running_event("_front").name \
 				== "room_selector":
 			room_scene.enabled_automatic_transitions = true
diff --git a/addons/escoria-core/game/core-scripts/esc/esc_compiler.gd b/addons/escoria-core/game/core-scripts/esc/esc_compiler.gd
index 8514e7a0..1c0915e2 100644
--- a/addons/escoria-core/game/core-scripts/esc/esc_compiler.gd
+++ b/addons/escoria-core/game/core-scripts/esc/esc_compiler.gd
@@ -219,7 +219,15 @@ func _compile(lines: Array) -> Array:
 			returned.append(dialog_option)
 		elif command_regex.search(line):
 			var command = ESCCommand.new(line)
-			returned.append(command)
+			if command.command_exists():
+				returned.append(command)
+			else:
+				escoria.logger.report_errors(
+					"Invalid command detected: %s" % command.name,
+					[
+						"Command implementation not found in any command directory"
+					]
+				)
 		else:
 			escoria.logger.report_errors(
 				"Invalid ESC line detected",
diff --git a/addons/escoria-core/game/core-scripts/esc/esc_event_manager.gd b/addons/escoria-core/game/core-scripts/esc/esc_event_manager.gd
index c09d0eda..76bbfe8b 100644
--- a/addons/escoria-core/game/core-scripts/esc/esc_event_manager.gd
+++ b/addons/escoria-core/game/core-scripts/esc/esc_event_manager.gd
@@ -177,10 +177,21 @@ func get_running_event(name: String) -> ESCEvent:
 # The event finished running
 #
 # #### Parameters
+# - finished_statement: statement object that finished
 # - return_code: Return code of the finished event
 # - channel_name: Name of the channel that the event came from
-func _on_event_finished(return_code: int, channel_name: String) -> void:
+func _on_event_finished(finished_statement: ESCStatement, return_code: int, channel_name: String) -> void:
 	var event = _running_events[channel_name]
+	if not event:
+		escoria.logger.report_warnings(
+			"esc_event_manager.gd:_on_event_finished()",
+			[
+				"Event %s finished without being in _running_events[%s]"
+					% [finished_statement.name, channel_name]
+			]
+		)
+		return
+	
 	escoria.logger.debug(
 		"Event %s ended with return code %d" % [event.name, return_code]
 	)
diff --git a/addons/escoria-core/game/core-scripts/esc/esc_object_manager.gd b/addons/escoria-core/game/core-scripts/esc/esc_object_manager.gd
index 50be5906..87d3d580 100644
--- a/addons/escoria-core/game/core-scripts/esc/esc_object_manager.gd
+++ b/addons/escoria-core/game/core-scripts/esc/esc_object_manager.gd
@@ -29,6 +29,19 @@ func _process(_delta):
 # - object: Object to register
 # - force: Register the object, even if it has already been registered
 func register_object(object: ESCObject, force: bool = false) -> void:
+	if object.global_id.empty():
+		object.global_id = str(object.node.get_path()).split("/root/", false)[0]
+		object.node.global_id = object.global_id
+		escoria.logger.report_warnings(
+			"esc_object_manager.gd:register_object()",
+			[
+				"Registering object with empty global_id.",
+				"Using node's full path as global_id: %s" 
+						% object.node.global_id
+			]
+		)
+		
+	
 	if objects.has(object.global_id) and not force:
 		escoria.logger.report_errors(
 			"ESCObjectManager.register_object: Object already registered",
diff --git a/addons/escoria-core/game/core-scripts/esc/types/esc_command.gd b/addons/escoria-core/game/core-scripts/esc/types/esc_command.gd
index 082f5a4b..d18f2416 100644
--- a/addons/escoria-core/game/core-scripts/esc/types/esc_command.gd
+++ b/addons/escoria-core/game/core-scripts/esc/types/esc_command.gd
@@ -82,16 +82,7 @@ func _init(command_string):
 
 # Check, if conditions match
 func is_valid() -> bool:
-	var command_found = false
-	for base_path in ProjectSettings.get("escoria/main/command_directories"):
-		var command_path = "%s/%s.gd" % [
-			base_path.trim_suffix("/"),
-			self.name
-		]
-		if ResourceLoader.exists(command_path):
-			command_found = true
-			
-	if not command_found:
+	if not command_exists():
 		escoria.logger.report_errors(
 			"Invalid command detected: %s" % self.name,
 			[
@@ -101,7 +92,22 @@ func is_valid() -> bool:
 		return false
 			
 	return .is_valid()
-	
+
+
+# Checks that the command exists
+#
+# *Returns* True if the command exists, else false.
+func command_exists() -> bool:
+	var command_found = false
+	for base_path in ProjectSettings.get("escoria/main/command_directories"):
+		var command_path = "%s/%s.gd" % [
+			base_path.trim_suffix("/"),
+			self.name
+		]
+		if ResourceLoader.exists(command_path):
+			command_found = true
+	return command_found
+
 
 # Run this command
 func run() -> int:
diff --git a/addons/escoria-core/game/core-scripts/esc/types/esc_statement.gd b/addons/escoria-core/game/core-scripts/esc/types/esc_statement.gd
index 98bded39..fe1b8c2a 100644
--- a/addons/escoria-core/game/core-scripts/esc/types/esc_statement.gd
+++ b/addons/escoria-core/game/core-scripts/esc/types/esc_statement.gd
@@ -4,7 +4,7 @@ class_name ESCStatement
 
 
 # Emitted when the event did finish running
-signal finished(return_code)
+signal finished(event, return_code)
 
 # Emitted when the event was interrupted
 signal interrupted(return_code)
@@ -54,13 +54,18 @@ func run() -> int:
 				final_rc = rc
 				break
 	
-	emit_signal("finished", final_rc)
+	emit_signal("finished", self, final_rc)
 	return final_rc
 
 
 # Interrupt the statement in the middle of its execution.
 func interrupt():
-	escoria.logger.info("Interrupting event %s" % str(self))
+	escoria.logger.info("Interrupting event %s (%s)" % \
+		[
+			self.name if "name" in self else "group",
+			str(self)
+		]
+	)
 	_is_interrupted = true
 	for statement in statements:
 		if statement.is_finished:
diff --git a/addons/escoria-core/game/core-scripts/esc_room.gd b/addons/escoria-core/game/core-scripts/esc_room.gd
index 202d558c..ff53ca62 100644
--- a/addons/escoria-core/game/core-scripts/esc_room.gd
+++ b/addons/escoria-core/game/core-scripts/esc_room.gd
@@ -110,13 +110,6 @@ func _ready():
 				player.update_idle()
 		escoria.object_manager.get_object("_camera").node.set_target(player)
 	
-	for n in get_children():
-		if n is ESCLocation and n.is_start_location:
-			escoria.object_manager.register_object(
-				ESCObject.new(n.name, n),
-				true
-			)
-	
 	if global_id.empty():
 		global_id = name
 	
diff --git a/addons/escoria-core/game/core-scripts/save_data/esc_save_manager.gd b/addons/escoria-core/game/core-scripts/save_data/esc_save_manager.gd
index d1945581..9da2a5a3 100644
--- a/addons/escoria-core/game/core-scripts/save_data/esc_save_manager.gd
+++ b/addons/escoria-core/game/core-scripts/save_data/esc_save_manager.gd
@@ -166,11 +166,17 @@ func load_game(id: int):
 	var file: File = File.new()
 	if not file.file_exists(save_file_path):
 		escoria.logger.report_errors(
-			"esc_save_data_resources.gd",
+			"esc_save_manager.gd:load_game()",
 			["Save file %s doesn't exist" % save_file_path])
 		return
 
+	escoria.logger.info(
+		"esc_save_manager.gd:load_game()",
+		["Loading savegame %s" % str(id)])
+	
 	var save_game: Resource = ResourceLoader.load(save_file_path)
+	
+	escoria.event_manager.interrupt_running_event()
 
 	var load_event = ESCEvent.new(":load")
 	var load_statements = []
@@ -181,6 +187,12 @@ func load_game(id: int):
 			[ProjectSettings.get_setting("escoria/ui/default_transition")]
 		)
 	)
+	load_statements.append(
+		ESCCommand.new("hide_menu main")
+	)
+	load_statements.append(
+		ESCCommand.new("hide_menu pause")
+	)
 	
 	## GLOBALS
 	for k in save_game.globals.keys():
@@ -192,7 +204,7 @@ func load_game(id: int):
 		
 	## ROOM
 	load_statements.append(
-		ESCCommand.new("change_scene %s true" \
+		ESCCommand.new("change_scene %s false" \
 				% save_game.main["current_scene_filename"])
 	)
 	
@@ -261,6 +273,9 @@ func load_game(id: int):
 	escoria.set_game_paused(false)
 	
 	escoria.event_manager.queue_event(load_event)
+	escoria.logger.debug(
+		"esc_save_manager.gd:load_game()",
+		["Load event queued."])
 	
 	
 # Save the game settings in the settings file.
diff --git a/addons/escoria-core/game/scenes/inventory/inventory_ui.gd b/addons/escoria-core/game/scenes/inventory/inventory_ui.gd
index 2dbe8055..99291a7c 100644
--- a/addons/escoria-core/game/scenes/inventory/inventory_ui.gd
+++ b/addons/escoria-core/game/scenes/inventory/inventory_ui.gd
@@ -60,8 +60,7 @@ func add_new_item_by_id(item_id: String) -> void:
 				escoria.logger.report_errors(
 					"inventory_ui.gd:add_new_item_by_id()",
 					[
-						"Item global id '%s' does not exist." % item_id, 
-						"Check item's id in ESCORIA_ALL_ITEMS scene."
+						"Item global id '%s' does not exist." % item_id
 					]
 				)
 				
diff --git a/addons/escoria-core/ui_library/menus/load_save/load/load_game.tscn b/addons/escoria-core/ui_library/menus/load_save/load/load_game.tscn
index 05435322..9da16b5f 100644
--- a/addons/escoria-core/ui_library/menus/load_save/load/load_game.tscn
+++ b/addons/escoria-core/ui_library/menus/load_save/load/load_game.tscn
@@ -12,6 +12,13 @@ __meta__ = {
 }
 slot_ui_scene = ExtResource( 2 )
 
+[node name="Panel" type="Panel" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+__meta__ = {
+"_editor_description_": ""
+}
+
 [node name="VBoxContainer" type="VBoxContainer" parent="."]
 anchor_left = 0.3
 anchor_top = 0.3
diff --git a/addons/escoria-core/ui_library/menus/load_save/save/save_game.tscn b/addons/escoria-core/ui_library/menus/load_save/save/save_game.tscn
index c374abb9..44cd0803 100644
--- a/addons/escoria-core/ui_library/menus/load_save/save/save_game.tscn
+++ b/addons/escoria-core/ui_library/menus/load_save/save/save_game.tscn
@@ -14,6 +14,15 @@ __meta__ = {
 }
 slot_ui_scene = ExtResource( 1 )
 
+[node name="Panel" type="Panel" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_top = -1.0
+margin_bottom = -1.0
+__meta__ = {
+"_editor_description_": ""
+}
+
 [node name="save_name_popup" parent="." instance=ExtResource( 4 )]
 visible = false
 
diff --git a/addons/escoria-core/ui_library/menus/main_menu/main_menu.gd b/addons/escoria-core/ui_library/menus/main_menu/main_menu.gd
index 3b60128e..dac988b2 100644
--- a/addons/escoria-core/ui_library/menus/main_menu/main_menu.gd
+++ b/addons/escoria-core/ui_library/menus/main_menu/main_menu.gd
@@ -27,11 +27,16 @@ func _on_quit_pressed():
 
 # Hide the options panel again
 func _on_options_back_button_pressed():
-	$options.hide()
-	$main.show()
+	reset()
 
 
 # Hide the load panel
 func _on_load_game_back_button_pressed():
+	reset()
+
+
+# Resets the UI to initial state
+func reset():
 	$load_game.hide()
+	$options.hide()
 	$main.show()
diff --git a/addons/escoria-core/ui_library/menus/options/options.tscn b/addons/escoria-core/ui_library/menus/options/options.tscn
index 1ab22d3f..f8529fa1 100644
--- a/addons/escoria-core/ui_library/menus/options/options.tscn
+++ b/addons/escoria-core/ui_library/menus/options/options.tscn
@@ -11,6 +11,13 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
+[node name="Panel" type="Panel" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+__meta__ = {
+"_editor_description_": ""
+}
+
 [node name="VBoxContainer" type="VBoxContainer" parent="."]
 anchor_right = 1.0
 anchor_bottom = 1.0
diff --git a/addons/escoria-core/ui_library/menus/pause_menu/pause_menu.gd b/addons/escoria-core/ui_library/menus/pause_menu/pause_menu.gd
index e03ba80e..cf01d6f3 100644
--- a/addons/escoria-core/ui_library/menus/pause_menu/pause_menu.gd
+++ b/addons/escoria-core/ui_library/menus/pause_menu/pause_menu.gd
@@ -31,21 +31,26 @@ func _on_quit_pressed():
 	escoria.quit()
 
 
-# Hide the save slots again
+# Hide the save slots after clicking back button
 func _on_save_game_back_button_pressed():
-	$VBoxContainer.show()
-	$save_game.hide()
+	reset()
 
 
-# Hide the load slots again
+# Hide the load slots after clicking back button
 func _on_load_game_back_button_pressed():
-	$VBoxContainer.show()
-	$load_game.hide()
-	
+	reset()
 
-# Set wether saving is enabled currently
+
+# Set whether saving is enabled currently
 #
 # #### Parameters
 # - p_enabled: Enable or disable saving
 func set_save_enabled(p_enabled: bool):
 	$VBoxContainer/menuitems/save_game.disabled = !p_enabled
+
+
+# Resets the UI to initial state
+func reset():
+	$save_game.hide()
+	$load_game.hide()
+	$VBoxContainer.show()
diff --git a/addons/escoria-ui-9verbs/game.gd b/addons/escoria-ui-9verbs/game.gd
index 3adbe24a..cb12a061 100644
--- a/addons/escoria-ui-9verbs/game.gd
+++ b/addons/escoria-ui-9verbs/game.gd
@@ -204,9 +204,12 @@ func _on_event_done(_event_name: String):
 func hide_main_menu():
 	if get_node(main_menu).visible:
 		get_node(main_menu).hide()
-
+		show_ui()
+		
 func show_main_menu():
 	if not get_node(main_menu).visible:
+		hide_ui()
+		get_node(main_menu).reset()
 		get_node(main_menu).show()
 	
 func unpause_game():
@@ -219,6 +222,7 @@ func unpause_game():
 
 func pause_game():
 	if not get_node(pause_menu).visible:
+		get_node(pause_menu).reset()
 		get_node(pause_menu).set_save_enabled(escoria.save_manager.save_enabled)
 		get_node(pause_menu).show()
 		escoria.object_manager.get_object("_camera").node.current = false
diff --git a/addons/escoria-ui-simplemouse/game.gd b/addons/escoria-ui-simplemouse/game.gd
index db3ed588..8069d219 100644
--- a/addons/escoria-ui-simplemouse/game.gd
+++ b/addons/escoria-ui-simplemouse/game.gd
@@ -185,11 +185,12 @@ func _on_event_done(event_name: String):
 
 func hide_main_menu():
 	if get_node(main_menu).visible:
-		 get_node(main_menu).hide()
+		get_node(main_menu).hide()
 
 func show_main_menu():
 	if not get_node(main_menu).visible:
-		 get_node(main_menu).show()
+		get_node(main_menu).reset()
+		get_node(main_menu).show()
 
 func unpause_game():
 	if get_node(pause_menu).visible:
@@ -200,6 +201,7 @@ func unpause_game():
 
 func pause_game():
 	if not get_node(pause_menu).visible:
+		get_node(main_menu).reset()
 		get_node(pause_menu).set_save_enabled(
 			escoria.save_manager.save_enabled
 		)
diff --git a/saves/save_001.tres b/saves/save_001.tres
index c405c551..5dbb50cc 100644
--- a/saves/save_001.tres
+++ b/saves/save_001.tres
@@ -6,13 +6,18 @@
 script = ExtResource( 1 )
 escoria_version = "0.1.0"
 game_version = "0.1.0"
-name = "testwalk"
-date = "23/11/2021 19:51"
+name = "test"
+date = "28/11/2021 16:50"
 main = {
-"current_scene_filename": "res://game/rooms/room15/room15.tscn",
+"current_scene_filename": "res://game/rooms/room01/room01.tscn",
 "last_scene_global_id": ""
 }
 globals = {
+"ESC_LAST_SCENE": "",
+"FORCE_LAST_SCENE_NULL": false,
+"dialog_advance": 0,
+"dialog_popup_advance": 0,
+"room1_visited": true
 }
 objects = {
 "_camera": {
@@ -23,7 +28,7 @@ objects = {
 "_music": {
 "active": true,
 "interactive": true,
-"state": "default"
+"state": "res://game/sfx/contemplation.ogg"
 },
 "_sound": {
 "active": true,
@@ -37,43 +42,48 @@ objects = {
 },
 "player": {
 "active": true,
-"global_transform": Transform2D( 1, 0, 0, 1, 243.677, 455.569 ),
+"global_transform": Transform2D( 1, 0, 0, 1, 870, 461 ),
 "interactive": true,
-"last_deg": 1,
-"last_dir": 0,
+"last_deg": 71,
+"last_dir": 2,
 "state": "default"
 },
-"r12_l_exit": {
+"r1_destination_point": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"r15_l_exit": {
+"r1_destination_point2": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"r15_r_exit": {
+"r1_destination_point3": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"say_long": {
+"r1_r_exit": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"say_long_left": {
+"r1_start": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"start": {
+"r1_wall_item1": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"switch_animation": {
+"r1_wall_item2": {
+"active": true,
+"interactive": true,
+"state": "default"
+},
+"trigger_talk": {
 "active": true,
 "interactive": true,
 "state": "default"
diff --git a/saves/save_002.tres b/saves/save_002.tres
index 790a6032..7b3015c0 100644
--- a/saves/save_002.tres
+++ b/saves/save_002.tres
@@ -6,18 +6,15 @@
 script = ExtResource( 1 )
 escoria_version = "0.1.0"
 game_version = "0.1.0"
-name = "testwalk2"
-date = "23/11/2021 20:19"
+name = "test2"
+date = "28/11/2021 16:50"
 main = {
-"current_scene_filename": "res://game/rooms/room15/room15.tscn",
+"current_scene_filename": "res://game/rooms/room02/room02.tscn",
 "last_scene_global_id": ""
 }
 globals = {
-"ANIMATION_RESOURCES": {
-"player": "res://game/characters/mark/mark_animations_weird.tres"
-},
-"BYPASS_LAST_SCENE": false,
 "ESC_LAST_SCENE": "room1",
+"FORCE_LAST_SCENE_NULL": false,
 "dialog_advance": 0,
 "dialog_popup_advance": 0,
 "room1_visited": true
@@ -31,12 +28,12 @@ objects = {
 "_music": {
 "active": true,
 "interactive": true,
-"state": "off"
+"state": "res://game/sfx/contemplation.ogg"
 },
 "_sound": {
 "active": true,
 "interactive": true,
-"state": "off"
+"state": "default"
 },
 "_speech": {
 "active": true,
@@ -45,43 +42,43 @@ objects = {
 },
 "player": {
 "active": true,
-"global_transform": Transform2D( 1, 0, 0, 1, 606, 441 ),
+"global_transform": Transform2D( 1, 0, 0, 1, 52.1462, 384.691 ),
 "interactive": true,
-"last_deg": 251,
-"last_dir": 6,
+"last_deg": 161,
+"last_dir": 4,
 "state": "default"
 },
-"r12_l_exit": {
+"r2_bridge": {
+"active": true,
+"interactive": false,
+"state": "default"
+},
+"r2_button": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"r15_l_exit": {
+"r2_button_right": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"r15_r_exit": {
+"r2_l_exit": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"say_long": {
+"r2_player_start": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"say_long_left": {
+"r2_r_exit": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"start": {
-"active": true,
-"interactive": true,
-"state": "default"
-},
-"switch_animation": {
+"r2_right_platform": {
 "active": true,
 "interactive": true,
 "state": "default"