Recreating Pokemon Heartgold background style

While replaying a Nintendo 3DS game with the title of Pokemon Heartgold, I’ve managed to find out that the backgrounds are actually 3D, as shown in the video. How would I recreate such effect in the roblox game engine to make backgrounds of my game look 2D?

try to move the frame or u know viewport with decal and texture and figure out how u can move it like what key!