Play this scene: flag-clash.pages.dev/1

Which country wins?

Eight country balls wait behind the start gate: Brazil, India, the USA, Japan, Germany, Sweden, Nigeria and Australia. When it opens, they drop onto one tall arena track and race to a single finish hole. The live ranking at the top follows every overtake, and the crown jumps to whoever is in front.

Nothing is scripted on this page. Every ball is a small physics simulation written in code: gravity, bounces and collisions decide the order. Pegs, zigzag ramps, a bottleneck with a holding gate, a spinning cross, boost ramps, a peg storm and a windmill shuffle the field differently every round. Tap the screen to give the ball in last place a push and help the underdog. The video shows one recorded round with a close photo finish.

Flag fact: the blue globe on Brazil's flag shows the sky over Rio de Janeiro on the morning of 15 November 1889, the day the republic was proclaimed. Each of its 27 stars stands for one state or the Federal District.

Play a new round at flagclash.dailydoseofsatisfying.com/1 and comment your country.