Hole in one
The courses are as you might expect typical Mario courses with lots of plumming pipes and piranha plants. Very much like Super Mario Land. This works very well in this game. You can play the game by yourself, but it's more fun with friends, because then you have some competition going. Playing alone can also be fun and there are plenty of characters and stuff to unlock.
I must warn you though that this is a Gulf game and as such it is a game of concentration and a somewhat slow pace and not everybody is into that. Therefor you might want to rent it first or play it at a friend's house.