If you are not familiar with the Bally Astrocade documentation, then there is one important warning that you may not be aware of. I'll sum it up for you: Do not use your Astrocade on a rug or any surface that does not allow the unit to ventilate, for this will kill your Astrocade. DEAD. It is not a question of if, but when this will happen. Take this advice to heart-- it is quite true. Allow that baby to breathe!