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