Upon entering Sector 1, you'll be in a large, open jungle area. Your path will initially be linear, but keep an eye out for hidden paths and items. The enemies here are relatively weak, but their numbers can be overwhelming if you're not careful.
- Proceed through the Jungle: Follow the main path, defeating any enemies that appear. Use your Charge Beam for larger groups.
- Encounter the First Save Station: You'll soon find a Save Station. Use it to save your progress.
- Acquire Morph Ball: Adam will authorize the Morph Ball ability. Press 'A' while standing still to transform. Use it to navigate small tunnels and reach new areas.
- Locate the Navigation Room: Your objective is to reach the Navigation Room. The map (Minus Button) will guide you. You'll need to use the Morph Ball to access certain vents and passages.
- First Missile Tank: Keep an eye out for your first Missile Tank. It's often found in a small alcove accessible via Morph Ball.
Remember to check your map frequently and look for suspicious cracks or small openings that might lead to secrets or the correct path.