Mario Kartouble Dash on the Gamecube.
My lad got it for his birthday yesterday, me the missus and my lad played it together in multiplayer mode (up to four players).
The power ups are fantastic, with a chompy monster thing being hilarious!
It is the most fun video game I have played in the past 20 years.
It has been reviewed and rated better then Project Gotham and GT4, simply because it's more fun.
Some games are getting way too serious, sometimes I think the days of quality video games have gone.
Then all of a sudden Nintendo restore the faith.
I know a fair bit about video games, as I more or less lived in arcades when I was young. My bro-in-law also works for a video game company, currently working on the next Spyro game (yawn!).
If you guys ain't got a Cube, get one now!