Having reviewed the Extended BASIC version of this game, Q Bono, I was pleased to see this adaptation for the unexpanded TI.
The screen displays a pyramid of cubes. You guide a man along them, diagonally only, and press the space bar to change the cube colour. The object is to complete the screen by changing all cubes to the specified colour.
Continually bouncing down the pyramid, however, is a white ball. A collision with this loses a life. There's also a black ball capable of transforming itself into various creatures that may move in any direction and change back the colour of the cube it occupies. This poses more of a threat to Cu" Bert as its moves are unpredictable at times.
Although the program worked without interruption for several runs, it subsequently crashed with a Bad Value - just as success was in sight, wouldn't you know it?!
Overall, I found Cu*Bert to be just as much fun as Q Bono, but was surprised that the keys were not the same. They weren't as comfortable to use, I would have preferred an option to re-define them.