Digital Monster Ver. WonderSwan/Digimon

The Digivolution system of this game is the same as the one for the v-pet and pendulum Digivices.

Buy the free egg from shop to get Version 1 Egg. Other eggs unlock as you defeat the Virus, Data, and Vaccine arena.

Botamon
The first Digimon you will get. Whether you train it or not he will always digivolve to Koromon.

Koromon
This is the digimon that is the hardest to train. Eventually you will end up with Betamon.

Betamon
This is the digivolution form of Koromon. Evolves with 4+ Care Mistakes

Agumon
This is the digivolution form of Koromon. Evolves with less than 3 Care Mistakes.

Greymon
Evolution from Agumon only with 0-3 Care Mistakes, Train 32+

Tyranomon
Agumon: 4+ Care Mistakes, Train 5-15, Overfeed 3+, 0-4 Sleep Disturbances

Punimon
The second digimon you can buy it in shop for 100 bits. Can digivolve to Tsunomon.

Numemon
The worst digimon you could ever possibly get. It's a rookie with powers of a weak champion.

Care mistakes

 * 1) If you don't feed it for 20 minutes when it calls you.
 * 2) If you don't train it (or feed it pills) for 20 minutes when it calls you.
 * 3) Leaving the lights on for 20 minutes after the Digimon falls asleep.

Sleep Disturbance

 * 1) Different from care mistakes, a few digimon need to be disturbed while sleeping many times to digivolve (such as Airdramon).