Hole in One
This code will only work on a soft-modded Wii running Gecko OS or similar program. Copy and paste the following code into Cheat Code Manager on the Homebrew Channel:
Hole in One (One player only): 48000000 8000275C DE000000 80008180 4A100000 00000004 14000000 00000001 E0000000 80008000
Type in "Crazy Mini Golf" under the title tab.
Unlock All Courses
To unlock all the courses, you will need to clear the first course under par. This can be extremely frustrating in simulation mode. To complete this task easily, clear the first course in arcade mode.
Better Golfing
In this game, a good club swing requires the correct swing motion. Try giving the smallest, slowest tap at contact with the ball, as the developers interpolated both the angle of rotation and the motion sensor, while other golf games utilize just the motion sensor. This means big swings will result in bad results, while smaller, controlled swings should give better results.