鬼佬網:
As well as species having an influence on the outcome of Original V-Pet battles, Digimon also have a power level. On the Original V-Pets themselves, this level can range from 0 to 2. As far as I've seen, 8 protein makes it go up, and a Care Mistake makes it go down. But only the first 16 protein have any effect, and if a Care Mistake makes it go down again then it's stuck there. When the Digimon evolves, the power level goes back to 0, as does the protein count. Training seems to have no effect.