Click Green Flag! This lags very much.
I was trying to see the differences between cloning and stamping, in cloning you don't need to refresh the sprites for clones, but in stamping it has to be done every second, like this project, it makes 3D by: 1) Stamping and Changing y position by 1 2) Clear 3) Goes to the initial position. This continuous action and makes this project very laggy. And you don't get the real 3D effect. So my/our conclusion: Use Cloning for making 3D objects. Try to make this 3D effect more good!