You need to go to the digivolution screen, if your digimon can evolve into an ultra level digimon, then you need to meet the requirements for the evolution, you need a certain amount of accelerators for some digivolution
I hope this helps
Okay, thank you. I couldn't find the way, but I see now that Gallantmon and Ulforce V-dramon don't have Ultra Forms. That's a shame.
