Aqua Missile Rain vs Zenith Sentry Totem | Marble Race Physics Simulation Tournament | Echo Clash Focus

English AI-generated marble race and physics simulation tournament video.
Format: 4 contenders, HP battle system, shrinking arena, and sudden-death pressure.
Featured contenders: Cosmo Prism Nova, Aqua Missile Rain, Lunar Mine Scatter, Zenith Sentry Totem.
Grand final matchup: Aqua Missile Rain vs Zenith Sentry Totem. Champion: Zenith 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.