Connect signal to remove enemies at game start

Enemy.gd

@@ -13,3 +13,6 @@ func _ready():
 
 func _on_VisibilityNotifier2D_screen_exited():
 	queue_free()
+
+func _on_start_game():
+	queue_free()

Main.gd

@@ -37,5 +37,7 @@ func _on_MobTimer_timeout():
 	newMob.rotation = newRotation
 	newMob.position = $MobPath/MobSpawnLocation.position
 	newMob.linear_velocity = Vector2(rand_range(newMob.min_speed, newMob.max_speed), 0).rotated(newRotation)
+	
+	$HUD.connect("start_game", newMob, "_on_start_game")
 
 	add_child(newMob)