The setup shows a four-sided pyramid (tetrahedron) from the front and from the back. Click one of the coloured dots to allow Zillions to randomize the setup.

Then move one of the arrows or one of the central buttons on the cube. Clicking one of the four central buttons will rotate a face clockwise. Clicking an arrow will rotate a central slice of the cube clockwise. Clicking a circular arrow next to a tip will rotate that tip clockwise.

You win if you manage to recreate the original setup (yellow and red on front, green and blue at back).

Variants 3 and 4 ('Freeplay') allow you to exercise your moves using the original setups.

 
The pyramid was one of the 3D-puzzles which appeared shortly after Rubic's Cube.

More freeware and real puzzles and games at my homepage: http://karl.kiwi.gen.nz.