Tallon IV is a vast, interconnected world. Progression often involves acquiring new abilities that unlock previously inaccessible areas. If you find a path blocked, make a mental note and return later once you've gained a new power-up. The map (accessed via the '–' button) is your best friend; use it to track your progress and identify unexplored rooms. Don't be afraid to backtrack; it's a core element of Metroid gameplay and often reveals hidden secrets.
