The Speed Booster is not just for running fast; it's a powerful tool for advanced movement. After activating Speed Booster, press down to store a 'Shinespark' charge. You can then release this charge by pressing 'A' while holding a direction (up, left, right, or diagonal) to launch Samus at incredible speeds, breaking through special blocks and reaching otherwise inaccessible areas. Mastering Shinespark puzzles is essential for 100% completion.
