These upgrades increase Samus's capacity for Missiles, Super Missiles, Power Bombs, and Energy, ensuring she has enough resources for challenging encounters.
- Missile Tank: Increases Missile capacity by 5. Missiles are used to open red blast doors and deal significant damage to enemies and bosses.
- Super Missile Tank: Increases Super Missile capacity by 2. Super Missiles are more powerful than regular Missiles and open green blast doors.
- Power Bomb Tank: Increases Power Bomb capacity by 1. Power Bombs clear the screen of most enemies and destroy special Power Bomb blocks.
- Energy Tank: Increases maximum energy (HP) by 99. Essential for survivability.
Collecting these tanks is crucial for success. More ammunition means more firepower for bosses, and more energy means you can withstand more hits. Prioritize finding these upgrades, especially Energy Tanks, to make your journey through Zebes much smoother.