I currently own exactly one functioning console game: Katamari Damacy.
In this game, you are the alien pilot of a small round thing (katamari), and you roll it all around a cartoon landscape (inside a house or around a town or whatever). If you roll it over something roughly smaller than itself, it will pick that thing up and grow. The point of various levels is either to grow the katamari to a certain size, or to pick up a number of objects that follow some theme.
The music is great.
I find this game really relaxing and just lovely to play. The controls are easy and there's nothing complicated.
If you'd like to know what it looks and sounds like, here is a rather poor-resolution video of the first level.