Sonicmon's baby form. It looks like a chibi Sonic head. It shows Joe where Digiworld is.
Sonicmon's small form. It looks like a chibi version of Sonic. It evolves from Spikymon when Joe plays with him.
Sonicmon's Champion form. It looks like Super Sonic. It has a special attack: Sonic Boom.
Sonicmon's final form. It looks like a combination of Sonicmon and WereGarurumon. It has a special attack: WereBurst