Birthday Boy is an amazing animation with a beautiful message behind it, it includes many intensifying and foreshadowing sounds for example during the time when the train goes past you get many different feelings, there is also a lot of symbolism included in this film, for example when Manuk makes the toys it shows his poverty, loneliness, boredom and creativity, the perspective of this film is omniscient and the camera angles assist with the perspective of the different scenes. Sejong Park uses these techniques which makes the film so good and meaningful. I strongly recommend birthday boy because of its amazing message and techniques.