How to gain SpecialExpBall
This guide will show you how to earn SpecialExpBalls.
Bull Coins / Point Cards
Collect Bull Coins and Point cards from killing in GOD maps or CataMaze. Talk to the Cronus Teleporter, she can bring you to Lost land where you can talk to Cata Maze Teleporter to enter Cata Maze. Bring them to General Huang in Cronus at (312,453).

DragonBalls
Collect DragonBalls all day long from Cronus, every time the event is active it will send you a link to bring you to the location to collect Dragon Balls. Trade Dragon Balls in at the Ancient Dragon in Cronus at (255,473). Can get 10x SpecialExpBall pack.

Frozen
Collect SpecialExpBalls from killing monsters in this region.