This is a much larger partnership than I had originally anticipated. Prepare your senses for a mathematical adventure, guys.
For the sword grant item, there was five swords you had to find around the site.
Sword Grant Item
It's Adventure Time!
Junk in the Trunk Shop Items
Long Tees
T-Shirts
Scarves
Cash Shop Items
Vampire Sound
Sugar Royalty
Mathematical Knight
LOOK Cash Shop Items
Princess Bubblegum's Look
Finn's Look
The RIG
Adventure Time & The Quest for Knowing
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Adventure Time Style
Beemo
Finn the Human Boy
Fionna the Human Girl
Jake the Magical Dog
Princess Bubblegum
Prince Gumball
Marceline the Vampire Queen
Marshall Lee
The Ice King
Ice Queen
Gunter the Penguin
Lumpy Space Princess
The Earl of Lemongrab
Party Pat
No Worms on the Bed
Princess Bubblegum's Wardrobe
Fionna's Battle Outfit
Firewolf Pup
Treetrunks the Elephant
Companions
Jake the Dog
Cake the Cat
Finn
Fionna
Baby Finn
Ice King
Ice Queen
Princess Bubblegum
Prince Gumball
Marceline
Marshall Lee
Marceline Bat
LSP
Susan Strong
Lady Rainicorn
Lord Monochrome
The Earl of Lemongrab
Party Pat
Party Karaoke Bears
Princess Collection
Demon Cat
Fat Ponay
Backgrounds
Finn and Jake's Tree Fort
Candy Kingdom
Ice Kingdom
Marceline's Cave House
SDSuper+
Adventure Time SDPlus Blind Box
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SDSuper+ AT01 Finn
SDSuper+ AT02 Jake
SDSuper+ AT03 Princess Bubblegum
SDSuper+ AT04 Marceline
SDSuper+ AT05 Ice King
SDSuper+ AT06 Lady Rainicorn
SDSuper+ AT07 Peppermint Butler
SDSuper+ AT08 LSP
SDSuper+ AT09 Lemongrab
SDSuper+ AT10 Fionna
SDSuper+ AT11 Cake
SDSuper+ AT12 Gumball
SDSuper+ AT13 Marshall Lee
SDSuper+ AT14 Ice Queen
SDSuper+ AT15 Lord Monochromicorn