When your Digimon dies, some of its stats carry over to the new egg. Your Tamer Rank determines how much is transferred, making each generation stronger than the last.

For the Decode version on 3DS, players can use the Re-Decode plugin to freeze aging, hunger, and poop status, or instantly digivolve via hotkeys. Password/code list - Digimon World Re:Digitize - GameFAQs

iz6qshrf (Used to extend your Digimon's life) 10x Autopilot: 2heqtq3p Digivolution Items