Accolades...
	Always Free Gold...
	Bypass Final Mine Field - Stea...
	Double Trouble's Heroic Challe...
	Treasure Chest Secret...

Accolades are tasks given by the game, and, while it doesn't are needed to a 100% file, some players like to have then, as some of then give XP boosts.

Accolade	How to unlock
Ambassador	Have 1 Skylander of each element.
Captain	Have 1 non-Starter Pack Skylander (3DS starters can be used, but starter variants not).
Chief Scholar	Collect all Story Scrolls (including Adventure Packs).
Commander	Have 12 different Skylanders.
Elite Agent	Make 1 Skylander complete all 32 Heroic Challenges.
Fashion Elite	Collect 10 Hats.
Field Marshal	Have 24 different Skylanders.
General	Have 16 different Skylanders.
Grand Admiral	Earn all Accolades.
Master of Skyland	Have all 32 Skylanders.
Power Excavator	Collect the Soul Gems of the 3 Starter Pack Skylanders.
Savior of Skylands	Complete Story Mode (not including Adventure Packs).
Seeker Adept	Collect 10 Legendary Treasures.
Sergeant Warrior	Have 8 different Skylanders.
Skylander Superstar	Earn 3-Star Rank on all Story Mode chapters (not including Adventure Packs).
Soul Warden	Collect all Soul Gems.
Student of Thought	Collect 10 Story Scrolls.
Treasure Hunter	Collect all Legendary treasures (including Adventure Packs).
Wardrobe Saint	Collect all Hats.

If you have the pirate seas adventure pack, when you are in the ruins, put the hidden treasure on the portal of power and find it in the game. after you have found it talk to somebody, and then you can find the hidden treasure at the same place again. you can do this over and over, but you may not talk to someone on the moment the hidden treasure opens or else it won't work.

In the final area of Minefield Mishap, you are supposed to carefully walk through a maze of mines to reach a golden staff. This entire maze can be skipped. After taking the last teleporter, you see the staff item on your characters right. You need to collect this in order to complete the challenge. If you walk directly towards the staff and into the first mine on your characters right, you can push and walk through the gap before the mine replaces itself. You'll get knocked back and take damage, but the mine wall wont replace the detonated mine before you walk through again. This is especially easy for characters with a dash move.

Some Skylanders have difficulties do finish the Double Trouble's Heroic Challenge (You Break It, You Buy It!), but there's a way to help. You need any Location Piece (2 will help more)/Anvil Rain, or the Time Twister Hourglass/Winged Boots, or booth. When you go to a place with hard-located enemies for certain Skylanders, use any Location Piece/Anvil Rain to defeat then without breaking anything. Use your Time Twister Hourglass/Winged Boots to gain time in empty sections.

In the Wii version, use your Legendary Treasure Chest Magic Item in The Ruins. Collect the treasure, then talk to any character. After talking, come back to the place of the Treasure Chest, and collect the treasure again. You can make that infinitely.