This act often features more intricate drilling sections and combines them with high-speed grind rails. You might need to drill through a series of soft platforms while avoiding obstacles, or use the Drill to quickly navigate an underwater maze. One Red Star Ring could be at the end of a hidden drill path that branches off the main route. Another might require you to drill through a specific section of a wall to reach a secret room. Keep an eye out for enemies that can disrupt your drilling. Use your Boost on the long straightaways to achieve high speeds and maintain your S-Rank potential.
