Runner is an onchain game controlled by the market, built with Uniswap v4 hooks on Robinhood Chain. The character runs forward automatically. Every 8 seconds, buying pressure steers it right and selling pressure steers it left. The track has obstacles, forks, prizes and a finish line. The market collectively determines how part of the trading fees are allocated between holder rewards, token buybacks and burns. Every trade through Runner's pool becomes a game input. No special controller or app required. The website lets you watch the race unfold.