Note: This trick requires Metroid Fusion and the Game Boy Advance and a link cable. Successfully complete Metroid Fusion and save the game. Connect both games with the link cable to unlock the classic NES version of Metroid.
Successfully complete the classic Metroid game in under two hours to view Samus without her suit during the ending sequence.
Note: This trick requires Metroid Fusion and the Game Boy Advance and a link cable. Successfully complete Metroid Prime and save the game. Connect both games with the link cable to unlock Samus' Metroid Fusion costume.
Successfully complete 50% of the research and creature data scans to unlock the Image Gallery 1 option.
Successfully complete 100% of the research and creature data scans to unlock the Image Gallery 2 option.
Successfully complete the game on hard mode to unlock the Image Gallery 3 option.
Find 100% of all power-ups to unlock the Image Gallery 4 option. Note: This does not include the Log Book.
Successfully complete the game with a 100% completion percentage to unlock hard mode.
Finish the game with a 74% or less completion percentage for the normal ending sequence. Finish the game with a 75% to 99% completion percentage to view an alternate ending sequence. Finish the game with a 100% completion percentage to view the best ending sequence.
With the first gun equipped, rapidly press Y + A. As soon as the missile fires, the gun will switch back to beam weapon mode, but when you press Y again, it fires another missile. This can take down enemies in a shorter time, preventing them from having more attacks on you.
If energy or ammunition is out of your reach, aim and charge your beam. The energy or ammunition will come to you.
Shoot any beam weapon repeatedly for about thirty seconds. When you stop, a heat wave can be seen in front of the arm cannon.
To acquire the Phazon Suit, you must defeat the Omega Pirate. The Phazon Suit makes you immune to most forms of Phazon radiation. It also comes equipped with the Phazon Beam, which can only be activated during the last Boss fight.
To see Samus' reaction within the helmet inside of the reflection, charge and shoot directly at the ground. Note: Try this in an icy place.
When you enter the Chozo Ruins, aim your gun skywards. You will see birds flying. Shoot the birds and they will explode, with feathers all over the place.
Normal Metroids (not Prime) can be dispatched rapidly by using Freeze Beam followed by a missile.
Shoot two Super Missiles to kill Chozo Ghosts. Also, if you have the X-ray Scope, you can maintain a lock on them.
The trick is to knock down the light-reflecting mirrors and bomb the plant away. At first, there is only one mirror that reflects the light and helps grow the plant. Fire at the Boss with normal fire rapidly until it is stunned; there is no need for heavy firearms. It will not be able to attack you at all if you stun it on time. After the plant Boss is stunned, run to the one reflecting mirror and shoot the red target behind the mirror with either a charge beam or only one missile. The plant will shrink and its spiky roots will vanish. Roll into a ball, go into where the roots were protecting, and drop a bomb. The plant is killed, but returns with two mirrors. Do the same thing with two mirrors, then three mirrors, then finally four mirrors. After finally killing the plant, the Varia Suit is yours.
When the Elite Pirates burst out of containment, switch to your normal beam and build up a charge shot. When the Elite is not trying to absorb energy, fire a Super Missile at them. Two Super Missiles will take them down. Use the following tactics to defeat the different kinds of Elite Pirates at the Phazon Mines. This is a very difficult area due to switching beams for certain pirates:
- Power Troopers
Use Normal Beams or charge a Normal Beam at it three to four times.
- Wave Troopers
Use Wave Beams or charge a Wave Beam at it (two to four times).
- Ice Troopers
Use Ice Beams or charge an Ice Beam at it and finish it with one missile.
- Shadow Pirates
Use the Thermal Visor to see them. Use Wave Beams or charge a Wave Beam at it at full force (two to four times); or, fire with ease with the Plasma Beam.
- Plasma Troopers
Fire at them with your Plasma Beam three or four times. Hide behind a wall and the Plasma Beam will end up finishing them with its burning effect. Do this to other pirates as well, even though they only need about three shots to be killed, only about one will evaporate them if you just wait patiently.
- Wave Troopers