Metroid Prime: Federation Force Hard mode
Successfully complete Mission 22: Convergence to unlock the Hard difficulty.
Hyper Mod
Successfully complete the “Blast Ball” challenge in either Solo or Multiplayer by getting five consecutive victories against progressively harder AI to unlock an unbreakable mod that can be used in both Solo and Multiplayer campaign missions. The mod eliminates movement restriction while charging the Power Beam, and inflicts double damage at full health.
Alternate ending
Successfully complete the “Each player retrieved an egg” bonus objective in Mission 17: Infestation to view an additional scene after the credits finish. This is more easily done by playing the mission alone since you just need to obtain a single egg.
Alternate paint job
Unlock medals in campaign missions on the indicated difficulty to randomly unlock one of 24 mech paint jobs.
- Bird Of Prey: Random chance every 5-6 medals in the Normal campaign.
- Bomber: Random chance after every 5-6 medals in the Hard campaign.
- Burner: Random chance every 5-6 medals in the Normal campaign.
- Federation Elite: Random chance after every 5-6 medals in the Hard campaign.
- Fighter Jet: Random chance every 5-6 medals in the Normal campaign.
- Flower Child: Random chance every 5-6 medals in the Normal campaign.
- Great White: Random chance after every 5-6 medals in the Hard campaign.
- Green Racer: Random chance every 5-6 medals in the Normal campaign.
- Hazard: Random chance after every 5-6 medals in the Hard campaign.
- Heater: Random chance after every 5-6 medals in the Hard campaign.
- Igneous: Random chance every 5-6 medals in the Normal campaign.
- Industrial: Random chance every 5-6 medals in the Normal campaign.
- King Cobra: Random chance after every 5-6 medals in the Hard campaign.
- Little Piggy: Random chance after every 5-6 medals in the Hard campaign.
- Peppermint: Random chance every 5-6 medals in the Normal campaign.
- Polka Dot: Random chance every 5-6 medals in the Normal campaign.
- Sabertooth: Random chance after every 5-6 medals in the Hard campaign.
- Silver Racer: Random chance every 5-6 medals in the Normal campaign.
- Sinew: Random chance after every 5-6 medals in the Hard campaign.
- Special Ops: Successfully complete the Normal campaign.
- Stitches: Random chance after every 5-6 medals in the Hard campaign.
- Tall Grass: Random chance every 5-6 medals in the Normal campaign.
- Tiger Stripe: Random chance after every 5-6 medals in the Hard campaign.
- Whiteout: Random chance every 5-6 medals in the Normal campaign.
Amiibo paint jobs
Successfully complete the indicated task to unlock the corresponding Amiibo paint job for your campaign mech:
- Bounty Hunter (missile aux ammo is in pairs of 10): Scan the Samus Amiibo.
- X-Ray: Scan most other Amiibos not used to unlock Metroid Prime: Blast Ball skins.
- Zero Suit (slow beam aux ammo is in pairs of 5): Scan the Zero Suit Samus Amiibo.