Epic Marble Race: Nebula Missile Rain vs Echo Inferno Field | AI Physics Battle | Aero Derby Run

English AI-generated marble race and physics simulation tournament video.
Format: 4 contenders, HP battle system, shrinking arena, and sudden-death pressure.
Featured contenders: Zenith Prism Nova, Nebula Missile Rain, Lunar Homing Orb, Echo Inferno Field.
Grand final matchup: Nebula Missile Rain vs Echo Inferno Field. Champion: Nebula 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.