JSAB is shorthand for Just Shapes & Beats, a rhythm-based bullet-hell game in which a small square survives waves of hazards timed to electronic music. Fans have clipped its most frantic moments for reaction edits, and this cube scream has travelled with that community because it instantly signals panic without needing any context. It is short enough for memes, TikTok edits and Discord reactions, and its cartoonish tone keeps a failed run funny instead of frustrating. That mix of game recognition and instant readability keeps it in rotation.