NOTE: This only works on these Digimon:

gumon- arGreymon- Gabumon- MetalGarurumon- Patamon- Seraphimon-
Wormmon-Stingmon-Gatomon-Magnadramon-Omnimon.

On the Select Digimon screen, hilight one of the above Digimon and hold R1, L1, & O then press X. The Tamer will be different.