Star Blazing is one of Asriel Dreemurr's attacks during the final boss fight in Undertale, the role-playing game released by Toby Fox in 2015. In the True Pacifist route Asriel takes a godlike form and fills the screen with falling star projectiles, accompanied by this bright summoning effect. Clips and edits from the fight spread widely through gaming communities on YouTube and forums, and the sound became shorthand for huge magical attacks. Fans still reuse it in fan animations, remixes and memes that reference Undertale's most emotional battle.