Marine Fortress

Marine Fortress is where the game REALLY heats up. Its got unbelievable waves, tons of obstacles, and a DIFFICULTY released shortcut.

Difficulty: Hard
Obstacles: Alot. At the beginning there is a tidebreaker that most people jump, but this, in fact, SLOWS you down. Next there is small area full of easy to trip on rubble. The next turn, in hard and expert settings, has an opening shortcut on the 2nd and 3rd laps.
Turn layout: Complex turns, tons of hairpins.
Straightaway Layout: Theres only one: at the end of the course.