I remember when I was a child, I didn't quite understand the game. At that time, I had no knowledge of the original V-pets and their method of raising Digimon. As an adult though, I really respect what this game was trying to do.
It is my favorite game on the PSX.
And the most unique videogame to ever exist since theres no other game that tries to do this kinds of things, aside from Re:Digitize.