to rank up vivosaurs battle and get new parts to that vivosaur to rank up YOURSELf... finish the objective of the chapter (for example when you beat badge dealer joe and get Rosie`s badges back)Then you can go to the Level-up battle in fossil stadium
i have no clue
level 7
well you have to find goobs
in level 3 area
I beat rupert using a level 14 teffla Areos 10 and a level 12 pelro it was quite easy
level 3
Level 12
using your best fossil
level 44
you go to the wwe
get to level 4
Rank 20 but it is very high