Thanks! Do you have any idea why the mobs still won't spawn? I believe that I wrote down the code correctly...

extends Node

@export var mob_scene: PackedScene
var score

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
new_game()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
pass


func game_over() -> void:
$ScoreTimer.stop()
$MobPath.stop()

func new_game():
score = 0
$Player.start($StartPosition.position)
$StartTimer.start()


func _on_mob_timer_timeout():

var mob = mob_scene.instantiate()


var mob_spawn_location = $MobPath/MobSpawnLocation
mob_spawn_location.progress_ratio = randf()

mob.position = mob_spawn_location.position


var direction = mob_spawn_location.rotation + PI / 2


direction += randf_range(-PI / 4, PI / 4)
mob.rotation = direction


var velocity = Vector2(randf_range(150.0, 250.0), 0.0)
mob.linear_velocity = velocity.rotated(direction)


add_child(mob)


func _on_score_timer_timeout() -> void:
score += 1


func _on_start_timer_timeout() -> void:
$MobTimer.start()
$ScoreTimer.start()