Back in the day, I worked in an electronics mall and the videogames department had one of those Hannah Montana games but for the DS. It was the only copy but it didnt sell no matter how many discounts it had. I think that especific copy acted as furniture for like half the lifespan of the console. A couple of years later I didn't work there anymore but kept contact with the people and the "Hannah Montana game" was a recurrent topic, until one time they told me our boss(at the time) saw it and just sneaked it into some client's purchase as a "gift".
Thats how the "Hannah Montana DS Game" saga came to an end.