Most ROOKIE Digimon digivolve to CHAMPION at Level ~20

Most CHAMPION Digimon digivolve to ULTIMATE at Level ~45 (Depending on DAY or NIGHT) (Requiring Crest Tag in Bag)

 

Most ULTIMATE Digimon digivolve to MEGA at Level ~65 (Requiring Crest Tag and Digi Core in Bag)

 

*Piximon digivolves to Marineangemon via WATERSTONE*