Neon Courier Rooftop Rush

Build a complete, polished, immediately playable browser game where the player controls a futuristic courier racing across connected rooftops to deliver packages before the timer expires. The game features lane-based rooftop movement, automatic forward motion, jumping, sliding, obstacle avoidance, collectible energy cells, timed deliveries, increasing level difficulty, and a clear progression system. Customize the visual theme and character appearance without changing the core gameplay.