​The Goal: Navigate as far as possible across procedurally generated rows of roads, train tracks, rivers, and grass fields to achieve the highest score.
​Traffic & Trains: Cars and trucks move at varying speeds across multiple lanes; high-speed trains give a brief warning via red track lights before roaring past.
​Rivers & Logs: Water is an instant-death hazard. Players must hop across floating logs and lily pads, which drift sideways at differing velocities.
​The Eagle Mechanic: Standing still for too long triggers an eagle (or hawk) that swoops down and takes the character, preventing idling and enforcing forward momentum.

Highway Runner