Tomogunchi turbo watch

I bought this bundle because I always wanted it but never seen it in shop before, but now I read that one of the final challenges are get in top 3 in battle roayale - which is removed from the game, so there is no chance that you can complete it. Did they change the challenge or not? Why would they put it in the store again if one of the challenged are not possible to complete and you won't get the reward? Does anyone else have this watch?