Wizard mode achievement.
Complete the 5 main missions which are started by hitting the URU middle hole 4 times ( 3 to unlock the gate and 1 hit in the rainbow bridge).
For descriptions on defeating each of the missions just have a look at the guide in the rule sheet section under help & options. (If enough people require It I don't mind adding some tips on each of the missions)
You should get the hang of these missions enough so that your able to complete all 5 on the 1st or 2nd ball ideally.
Once these are all complete the final wizard mode is a multi-ball mode meaning no time limit. You need to be pretty good at keeping multi-ball's going however, as it's surprisingly tricky on this table.
The 1st goal is to hit all 7 ramps/orbits in the order in which they flash. The order is random, but it doesn't nominate another shot until you've completed the current flashing shot. It's surprisingly awkward to pull off some of the shots as you need to concentrate on keeping the balls live also.
Once you've hit all 7 shots you simply have to sink however many remaining balls you have in any hole. This part is easy in comparison.
If you fail you have to redo all 5 missions so this can be a frustrating endeavour.
Take advantage of the initial ball-save and ignore 2 of the 3 balls and just go for the shots. If you can get a couple of successful shots off during this it puts you in a good starting position.
Other than that just practice keeping all 3 going for as long as possible. The likely hood is however that you'll get most of the shots with only 2 as it's very hard to coordinate 3 balls.
Good luck and let me know if there's anything else you need help with :D