Echo Sentry Totem vs Zenith Missile Rain | Marble Race Physics Simulation Tournament | Aero Rush Cut

English AI-generated marble race and physics simulation tournament video.
Format: 4 contenders, HP battle system, shrinking arena, and sudden-death pressure.
Featured contenders: Aurora Twin Oblivion, Echo Sentry Totem, Zenith Missile Rain, Volt Twin Oblivion.
Grand final matchup: Echo Sentry Totem vs Zenith Missile Rain. Champion: Echo 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.