Arrow + AD keys to move. This is a 3D Cube. That is very ordinary, as many made a 3D cube. But to spice this up, this uses NO PEN! This is useful as this will outweigh pen since this involves less lag, less code, and more freedom of shapes. This also can be used to make other shapes besides a cube.
An issue you might see is that it looks weird. That is because I didn't use precise 2d measurements of displacement of cube. Once I do that (which takes time and effort), it will look very normal. It will have some error, but it is small.