What changed with the Mystery Box Upgrade and Easter 2015 updates?

LPNintendoITA wrote:

ericandrew403 wrote:

drbywho wrote:
Does that list of items (lard lad, squeeky teen, etc) mean they're the only prizes in the new mystery box?

Are the Mystery Boxes gone? I can't find them anymore.

nope still there in the premium menu

OH, i had looked in all three categories and never noticed it could be expanded out like that. Finally found it. Got a stupid Chalmers Onda.