The GauntletWorks like in BiS, but there are "sets" instead. In each set, you fight some enemies in order with a harder version of one of the many bosses at the end. You go to a resting room in between each battle. Beating a set gets you prizes. Here's the sets:
Set 1: Mushroom Insanity!
Battle 1: 3 Shrooblet X
Battle 2: 2 Goomba X, 1 Koopa Troopa X
Battle 3: 2 Koopa Troopa X, 1 Red Koopa Troopa X
Battle 4: 1 Shrooblet X, 1 Goomba X, 1 Koopa Troopa X, 1 Red Koopa Troopa X
Battle 5: BOSS- Lakitu X
Prizes: Cards of the X enemies in the set, set amount of coins, set amount of Star Pieces (not DSP), access to Set 2
Set 2: Island Melee!
Battle 1: 2 Borp X, 1 Red Gnarantula X
Battle 2: 1 Borp X, 1 Red Gnarantula X, 1 Koopa Troopa (shades) X
Battle 3: 2 Koopa Troopa (shades) X, 2 Piranha Plant X
Battle 4: 3 Drillbit Crab X
Battle 5: BOSS- Green Coconutter X
Prizes: Cards of the X enemies in the set, set amount of coins, 30 Good Apples, access to set 3
Set 3: Brawl in the desert!
Battle 1: 3 Pokey X
Battle 2: 2 Dry Bones X, 1 Pokey X
Battle 3: 3 Bob-omb X, 1 Dry Bones X
Battle 4: BOSS- Tutankoopa X
Prizes: Cards of the X enemies in the set, set amount of coins, Bronze Gauntlet Trophy, access to set 4
Set 4: Clash of the flowers and sewers!
Battle 1: 2 Gloomba X, 2 Spiny X
Battle 2: 2 Paratroopa X, 2 Underground Koopa X
Battle 3: 2 Shy Guy X, 2 Underground Bob-omb X
Battle 4: BOSS- Runaway Chain Chomp X
Prizes: Cards of the X enemies in the set, set amount of coins, 10 Melons, access to set 5
Set 5: Mushroom Kingdom Royale!
Battle 1: 2 Pipe Lakitu X, 2 Blue Koopa X
Battle 2: 2 Blue Koopa X, 1 Blue Paratroopa X, 1 Pipe Lakitu X
Battle 3: 2 Hammer Bro X, 1 Pipe Lakitu X
Battle 4: 3 Red Coconutter X
Battle 5: BOSS- Kamek X
Prizes: Cards of the X enemies in the set, set amount of coins, access to set 6
Set 6: Underground Fight!
Battle 1: 2 Underground Spiny X, 1 Fishin' Lakitu X
Battle 2: 3 Underground Shy Guy X, 1 Fishin' Lakitu X
Battle 3: 3 Elite Shy Guy X
Battle 4: BOSS- General Shy Guy X
Prizes: Cards of the X enemies in the set, set amount of coins, Silver Gauntlet Trophy, access to set 7
Set 7: Beanbean Boys!
Battle 1: 2 Beanie X, 2 Spiny X
Battle 2: 2 Beanie X, 1 Troopea X
Battle 3: 3 Parabeanie X, 1 Sworm X
Battle 4: 2 Sworm X, 1 Tanoomba X, 1 Chuck Guy X
Battle 5: 2 Tanoomba X, 1 Chuck Guy X, 1 Paratroopea X
Battle 6: BOSS- Poison Dry Bones X
Prizes: Cards of the X enemies in the set, set amount of coins, access to set 8
Set 8: Rockade's Revenge
Battle 1: 6 Angry Rockade
(rocks attacking AAAAAAH!)Battle 2: BOSS- No-Joke Rockade
Prizes: Cards of the enemies in the set, set amount of coins, access to champion
Set 9: Champion Match!
Battle X:
(can't think of enemy)
Prizes: Card of the champion, set amount of coins, Gold Gauntlet Trophy