Spirit System is a special hatching for Digimon. This system unlocks Spirit Digimon. You need a Spirit summon card, that can be dropped by any Digimon of the same elemental attribute as the Spirit. Once summoned and defeated, it will drop you a Spirit Item. (For example: You can get a Spirit of Fire H after defeating the Agnimon summoned with the Agnimon summon card item). Take it to Bokomon (NPC) in Dats Center. The dropped Spirit Item and 1 Bokomon's Book of Knowledge (Found in the Cash Shop) are required to hatch Spirit Digimon. Spirit Digimon take up one Digimon Archive slot each and they are "hatched" as 3/5 Digimon.
Also, if you get a Spirit Digimon to level 99, you can take it back to Bokomon to obtain a Spirit of Shining <Elemental Attribute> <H/B>) item, and the Digimon will be permanently deleted in the process. This will cost you 500M.The Shining Spirits are required to break the seal of higher Hybrid forms. To unlock a Hyper Spirit Evolution, you need 10 Shining Spirits <Elemental Attribute> <H/B> related plus 1T. Hyper Spirits are also "hatched" as 3/5 Digimon.
There is also an ultimate spirit form called Ancient Spirit. In DSO, in order to unlock this Ancient Spirit, you must unlock the two Hyper Spirits and level up them to Lv99. After that, a jogress quest will be unlocked at Bokomon and you will be able to digivolve into the Ancient Spirit after finishing that(Requires Tamer Lv90).
Spirit Digimon can be obtained at Bokomon (NPC).
Spirit of Shining items are tradeable.
Hyper Spirits Digimon are classified as Category:Digimon Rank S+, being strong burst modes.
Ancient Spirit is the jogress between the two Hyper Spirits, creating Susanoomon.
You can change the Spirit Digimon's size using their own special fruits:
Fruit of Champion: Changes size from 85.00% ~ 130.00% randomly
Fruit of Overload: Changes size from 115.00% ~ 130.00% randomly
Fruit of Genesis: Changes size from 121.00% ~ 130.00% randomly