Epic Marble Race: Nova Missile Rain vs Echo Bounce Spike | AI Physics Battle | Frost Arena Session

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 Inferno Field, Nova Missile Rain, Echo Bounce Spike, Nova Bounce Spike.
Grand final matchup: Nova Missile Rain vs Echo Bounce Spike. Champion: Nova Missile Rain.
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.