Change of Sprite Vertically

[Poyzin]

Is there a way for a sprite group to change each time it goes up or down on the map? Like perspective?

******************** -Sky (Blocked)
******************** -Smallest Sprite
******************** -Big
******************** -Bigger
******************** -Biggest Sprite

I think this idea is kind of revolutionary for games. Gives it a kind of 3D feature to it.

I want this in my game, but I think it would be kind of hard to do.

Any help?
Thanks.