How can i change to the hg/ss battle screen?

[Laikar]

I don't know if this should go here.
I remember playing about 2 years ago, and the battle screen beeing the one of hearth gold/soul silver, can i turn back to using that one?
This one is the one i'm talking about.
(it has moemon but i doubt it has anything to do with it)

[Kizhaz]

Since the Unova update we use the 5th gen battle scene, it's not possible to change