For the multiplayer side of the game there's plenty to unlock, from new characters and arenas to beefing up your match record. Read on for a list of all the unlockables in the game.
To initially unlock each of the other six hunters for multiplayer use, simply face and defeat them in the Adventure Mode or face them against a foe in multiplayer.
There's a healthy number of unlockable arenas to acquire throughout your multiplayer escapades. Read on for the requirements of each.
Your Hunter License records all your activities online and tracks your overall progress throughout matches. Access your Hunter License by simply selecting Multiplayer Mode -> Nintendo Wi-Fi Connection -> Edit Friends and Rivals. See below for details on acquiring new ranks and reward symbols.
Medal Emblems: Win matches to receive a lightning bolt icon representing your overall winning score. This can be done either locally or online.
Wi-Fi Rankings: Win matches online to score ranking points, but watch out as losing matches will also lose you a few points on your rank.
Other symbols: Do the following to acquire these symbols.
Conquer Gorea's second form in the Adventure Mode to unlock the Sound Test in the main options screen.
Samus is still without her Spring Ball ability in this adventure so you'll need to rely on the tried-and-true double bomb-jump to propel her high enough to reach certain areas. Firstly, stay still while in Morph Ball mode and lay a bomb.
Lay a second just before it detonates, then lay a third at the apex of the jump when the first bomb launches Samus into the air. If timed correctly you'll land on top of the second bomb as it blows, propelling Samus up into the air to hopefully catch the third as it goes off, sending her even higher.