667B is a Brazilian city arcade built around short timed routes instead of one endless run. A skater bunny races three lanes through three districts that open only as stars are earned: a beachfront with wave mosaic pavement, a colonial city street hung with bunting, and a tropical jungle path. Each of the fifteen stages has its own distance, speed, time limit and mission, from collecting coconuts and samba feathers to finishing under a star time or riding a Samba Boost.
The run is a top-down lane rush. Obstacles such as crabs, sandcastles, cones, barriers, logs and boulders block lanes, while coins and district items stay on the road. A shield, a magnet and a clock change how a single attempt plays, and the chosen trail leaves its own particle wake. Swipe or on-screen buttons both work, and an assist option can soften a first hit.
Progress stays on the device. Coins buy trails and perks, a seven-day bonus rewards a return visit, and fifteen trophies track routes, collections and quiz scores. A catalog explains every treasure, obstacle and district. Thirty Brazil facts can be saved as favorites, and a timed quiz pays coins for correct answers. Settings cover controls, hints, haptics and a full progress reset. Nothing is uploaded, and no account is required.