Game Description Insane Cube online. How to play the game online Game Crazy Cube looks like a Rubik's Cube. In fact, the similarity is purely superficial. You have to be connected by a continuous line of colored squares, two root cells of the same color from red to red, green to green, etc. e The difficulty is that the cells may be on different sides of the cube to be rotated. As soon as you connect all the color sets on the cube, the cube will disappear and a new level, more challenging than the last.