Go to the level editor. Put an object anywhere near the Mario card. Insert a green pipe and put it near the Mario card. The card MUST be on a cross-section on the grid. Move either the pipe or the card any WHOLE square space in any direction. Switch to the eraser tool and hold down on one of the three objects. Still holding down with the stylus, erase all three objects. When you let go, they will all move the same distance in the opposite direction the pipe or card was moved. This glitch can be used to replace any non-deletable object such as floor, Mini Marios, etc. by moving another object into it. You can also use the glitch to move colored pipes. Place the card and green pipe near the colored pipe. Move the card or pipe MORE than one square, and make sure the colored pipe won’t collide with anything else. Now select the eraser tool, and drag a box around the three objects. Select exit in the settings menu. On the confirmation screen, hit the red X. This will make the pipe moveable. You MUST edit the pipe before doing any erasing elsewhere or the game will freeze.