From Pixelmon Wiki
A Great Ball is a type of Poké Ball categorized by the red and blue coloring on its upper lid. It has a 1.5× the catch rate of a normal Poké Ball. It can be obtained by crafting it, buying from a shopkeeper, or as a tier 1 special drop,
Great Balls are crafted similarly to other Poké Balls.
|Great Ball Lid||Cooked Blue Apricorn +
Cooked Red Apricorn
|Great Ball||Great Ball Lid +
Main article: Drops
Great Balls used to be crafted differently. This recipe no longer works.