customboss in the bis battlegrounds

Starlowart (or starlow art)

Level:66 HP:1111 ATK:111

Gives 3333 COINS if you win

Charles the Greatest Pilot and Helicopter

Level:69 HP:1200 ATK:120

Gives 3669 COINS if you win

Master Gamejolt Monster

Level:68 HP:1500 ATK:104

Gives 3600 COINS and 4 candy stickers if you win

Giant Gamejolt Monster

Level:60 HP:1250 ATK:78

Gives 3200 COINS and 3 candy stickers if you win

Bigger Monster

Level:40 HP:1050 ATK:52

Gives 2500 COINS and 2 candy stickers if you win

Champion Gamejolt Monster

Level:80 HP:1800 ATK:126

Gives 4000 COINS and 5 candy stickers.

Gamejolt Monster

Level:30 HP:800 ATK:26

Gives 2000 COINS and a free candy sticker on your latest post if you win...

Usalina. (from gacha club)

Level:55 HP:2000 ATK:30

Gives 3000 COINS if you win

Corrupted Bella! (from gacha club)
Level:70 HP:1600 ATK:100

Gives 3650 COINS if you win

Girl Bowser (Looks lazy)

Level:43 HP:1610 ATK:60

Gives 2250 COINS if you win