At its core, "Hype Boy" is a hybrid of future bass, bubblegum pop, and synth-pop, heavily influenced by and UK Garage (UKG) . The instrumental is characterized by:
: Listeners have specifically praised the "warped loop" that caps off the hook, adding a unique, almost "melty" texture to the song. Why It Works NewJeans - Hype Boy | Instrumental
: These create a "hazy" and "dreamy" atmosphere that defines the NewJeans sound. At its core, "Hype Boy" is a hybrid