View of the game, How can we change the view of the game to be 2,5 dimension Options

[Black Kiem Ryuu]

Hello, I've been using RPG MAKER VX to make an RPG game. But the view of the map and the battle scene is in 2dimension . I wonder, how to make it looks 2,5 dimension or at least make it in isometric view.
I often see some people can make it that way.
Please help me to solve this problem. Thank you