English AI-generated marble race and physics simulation tournament video. Format: 4 contenders, HP battle system, shrinking arena, and sudden-death pressure. Featured contenders: Prism Bounce Spike, Volt Prism Nova, Nebula Sentry Totem, Aqua Inferno Field. Grand final matchup: Prism Bounce Spike vs Nebula Sentry Totem. Champion: Nebula Sentry Totem. Rules: every fighter starts with 100 HP, collision damage accumulates, and the last survivor wins. Keywords: marble race, physics simulation, ASMR collision sounds, HP tournament, AI battle shorts. AI-generated content disclosure: enabled.
