Dash Ghost Effect in Godot 4

#Sprite2D

extends Sprite2D

func _ready():
    randomize()
    var tween = create_tween()
    tween.tween_property(self, "modulate:a", 0.0, 0.4).set_trans(Tween.TRANS_SINE).set_ease(Tween.EASE_OUT)
    tween.tween_interval(0.6)
    tween.tween_callback(tween_all_completed)

func tween_all_completed():
    self.queue_free()


#------------------------------------------


#Script that calls the function start_rush_ghost()

@onready var source: Sprite2D = $"location where the source Sprites"
var sprite

func start_rush_ghost():
    for i in 7:
        instance_rush_ghost()
        await get_tree().create_timer(0.02).timeout

func instance_rush_ghost():
    var ghost: Sprite2D = rush_ghost.instantiate()
    get_tree().root.add_child(ghost)

    ghost.global_position = player.global_position #Self explanatory
    ghost.texture = source.texture
    ghost.scale = source.scale
    ghost.vframes = source.vframes
    ghost.hframes = source.hframes
    ghost.frame = source.frame