ULTRAKILL is a fast paced retro first person shooter developed by Arsi 'Hakita' Patala and published by New Blood Interactive, first released in early access in 2020. Gabriel is one of its major angelic bosses, presented as a righteous judge who confronts the player character V1 in Heaven's courts and battle arenas. Fans clipped his voiced warnings because the performance stands out against the game's frantic speed and heavy soundtrack. Shared on soundboards and in edits, 'turn back now' became shorthand for a solemn, last chance warning before a boss fight begins.