Nova Sentry Totem vs Nebula Missile Rain | Marble Race Physics Simulation Tournament | Arc Collision Stage

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 Mine Scatter, Nova Sentry Totem, Nebula Missile Rain, Aqua Twin Oblivion.
Grand final matchup: Nova Sentry Totem vs Nebula Missile Rain. Champion: Nova 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.