Ultrakill is a fast-paced retro first-person shooter developed by Hakita and published by New Blood Interactive, first released in early access in 2020. Its Fraud layer forms part of Act III, with level 8-1 titled Hurtbreak Wonderland introducing surreal, liminal spaces unlike the game's hellish arenas. The ordinary doorbell from that level was clipped by players and shared on soundboards, where its polite tone became a reusable punchline for entrances and interruptions far beyond the game itself.