Instructions
Obtain a Savers Egg by connecting your "Digimon World: Dusk" or "Dawn" game with another player via Nintendo Wi-Fi and selecting the "Digimon Matching" option. Have each player select any Digimon as long as both are over Level 60. A Savers Egg will appear in your inventory.
Hatch the Savers Egg by adding it to your Digimon team and participating in Digimon battles. The Savers Egg will hatch into ShineGreymon after gaining enough experience.
Obtain a Gigimon by battling with him in Task Canyon. Then go to your Tamer Home and find Gigimon on the computer. Highlight Gigimon and select "Digiconvert" to add him to your team.
Use Gigimon in battles until he gains enough experience to evolve into Gallantmon at Level 60.
Use your ShineGreymon in battle until he gains enough experience to become Level 68. Continue using ShineGreymon in battles if he does not have 100 percent friendship with you. Each battle you win using ShineGreymon will increase his friendship toward you.
Open the main menu and select "Digivolve." Select your ShineGreymon and Gallantmon and press the "Y" button. The two Digimon will fuse together and become ShineGreymon Burst Mode.