Collect all twelve artifacts in Multi-Mission mode to unlock the Artifact Temple table in Single Mission mode.
Display game password
At the "Press Start" screen, press B to display your last bounty. Press Select to display a password that represents your game status. The password is used for online contests.
Expert mode
Successfully complete Multi-Mission mode and view the credits to unlock Expert mode under the options menu.
Getting into the Impact Crater
Get all of the Chozo Artifacts. You will be sent to the Artifact Temple, where you must go into a blue light on the floor on the top screen. After you some weird balls come out, Try to get them in their slots in any order. Be careful, as Meta Ridley will try to destroy them. When you get them in all of the slots, you will get to the Impact Crater.
Impact Crater table
Defeat Metroid Prime in Multi-Mission mode to unlock the Impact Crater table in Single Mission mode.
Phazon Mines table
Defeat the Omega Pirate in Multi-Mission mode to unlock the Phazon Mines table in Single Mission mode.
Phendrana Drifts table
Defeat Thardus in Multi-Mission mode to unlock the Phendrana Drifts table in Single Mission mode.