Amy Emblem - Complete Mission mode with Amy.
Aquatics Champs Emblem - Gold Medals in All Aqautics Events.

Blaze Emblem - Complete Mission mode with Blaze.
Bouncing Emblem - Perfect 10 on Trampoline.
Bowser Emblem - Complete Mission mode with Bowser.

Crowns

Amy Crown - Get all gold and 1st medals using "Amy"

Blaze Crown - Get all gold and 1st medals using "Blaze"
Bowser Crown - Get all gold and 1st medals using "Bowser"

Complete Crown - Get all gold and 1st medals using every characters.

Daisy Crown - Get all gold and 1st medals using "Daisy"
Dr. Eggman Crown - Get all gold and 1st medals using "Dr. Eggman"

Knuckles Crown - Get all gold and 1st medals using "Knuckles"

Luigi Crown - Get all gold and 1st medals using "Luigi"

Mario Crown - Get all gold and 1st medals using "Mario"

Peach Crown - Get all gold and 1st medals using "Peach"

Shadow Crown - Get all gold and 1st medals using "Shadow"
Sonic Crown - Get all gold and 1st medals using "Sonic"

Tails Crown - Get all gold and 1st medals using "Tails"

Vector Crown - Get all gold and 1st medals using "Vector"

Waluigi Crown - Get all gold and 1st medals using "Waluigi"
Wario Crown - Get all gold and 1st medals using "Wario"

Yoshi Crown - Get all gold and 1st medals using "Yoshi"

Knuckles Emblem - Complete Mission mode with Knuckles.

Luigi Emblem - Complete Mission mode with Luigi.

Mario and Sonic Tunes - Complete all 5 of the levels of the minigames found in any of the 5 doors in the Gallery. Complete all minigames and all their levels in each door to unlock all of the music.

Mario Crown - Get all gold and 1st medals using "Mario".
Mario Emblem - Complete Mission mode with Mario.

Shadow Emblem - Complete Mission mode with Shadow.
Sonic Emblem - Complete Mission mode with Sonic.

Vector Emblem - Complete Mission mode with Vector.

Waluigi Emblem - Complete Mission mode with Waluigi.
Wario Emblem - Complete Mission mode with Wario.