Released: Aug 1986

  • Arcade
  • FDS
  • GBA
  • NES
  • Cheats

Metroid Cheats, Codes & Secrets

Last Updated on Sep 21, 2023

This page contains cheats, hints, Easter eggs, secrets, and tips for Metroid. We will continually update this page when we come across more useful cheats and tips.

Metroid Cheats For NES

Suitless Samus

To unlock Suitless Samus, beat the game and under 2 hours, then select "Continue" and on the password screen, just press Start without changing anything.

Climb Up Walls Glitch

You can use doors to glitch yourself up walls. To do this, open a door, then sand in the middle of where the door will close. After the door closes on you, press Up and Down on the D-pad and Samus will be able to glitch up the wall. Be careful when doing this because you can become permanently stuck in the wall.


On the title screen, go to "Continue" and enter these passwords on the password screen.

Password Effect Password
Start with Ice Beam 000000 000000 080000 0000Y8
Start with Long Beam 000000 000000 100000 000004
Start with Wave Beam 000000 000000 040000 0000X8
Start with 255 missiles 000000 000000 0Fy000 00003
Star with 255 missiles, no energy tanks 000000 000000 03-200 000089
Start with Bombs and Maru Mari (Morph ball) 000000 000000 4G0000 00000H
Start with infinite energy (health), missiles, and all power-ups NARPAS SWORD0 000000 000000
Start with 215 missiles, 5 energy tanks, all powerups, both mini-bosses dead X-z-uJ lls0W0 fVvweG 000WNr
Start as suitless Samus with no items 000000 000020 000000 000020
Start as suitless Samus with all weapons mMuiS1 II6-GE Jls?h0 m00WRM
Start at Tourian, all power-ups, 2nd ending V----- -r-e69 t?A00e 00M04p
Start at Tourian, all power-ups, 4th ending OV---- --r-e6 9t?A08 000GTq
Start at Tourian, all power-ups, 5th ending 7----- -zVw1Y T-YW01 -W5WCl
Start at Tourian, all power-ups,  Best ending 5X---- ---N?W OdVue0 0000iu

All Endings

These are all the different types of endings in Metroid and what is required to obtain them.

Unlockable Ending How to Unlock
Worst Ending - Suited Samus looking away Beat the game in 10 or more hours as Suited Samus or 5 or more hours as Suitless Samus
Bad Ending - Suited Samus facing you Beat the game in 5-10 hours as Suited Samus
Fair Ending - Samus with her helmet off Beat the game in 3-5 hours
Good Ending - Suitless Unlock - Suitless Samus (Leotard) Beat the game in less than 3 hours
Best Ending - Suitless Samus (Bikini) Beat the game in less than 1 hour as Suitless Samus

Metroid Game Genie Codes

The following cheat codes are for Game Genie. These can be used on a Nintendo Entertainment System (NES) with a Game Genie device or you can use these on any emulator that supports Game Genie Codes. If you want a Game Genie Device, you can always check on Amazon for one.

Cheat Effect Cheat Code
Start With 70 Energy instead of 30 YAXGVPLA
Infinite Energy (health) SXSGNVSE
Gain 10 Missiles instead of 5 ZENSXLIE
Gain 15 Missiles instead of 5 YENSXLIE
Infinite Missiles (must first get them) SZUILUVK
More Cheats: NES