This is without a doubt one of the most frustrating achievements in the entire game because you cannot use your fuel to control the ball and because you need incredible precision with every shot to pull this one off. You'll be spending at-least 10-20 minutes on each hole just to get a chance at this.
Unlike The Story Course under Par achievements you cannot abuse the
quit round feature, as in Miniputt and Median courses the game will put you back
where you left off every time.
It's not so bad though, as
you can abuse the fact that you can back up and reload your savegame. -
This is without a doubt completely impossible to get this without abusing this.
The only
opportunity for this is on the course "Minigreen 1" (The fourth course,
on the first page of Vertiginous Courses)
The method required for each hole is self explanatory once you look at the hole, but actually completing them is a whole other story.You need a hole in 1 in Hole 1,2,3,4,5, 7 and 8. and a hole in 2 on Hole 6 and 9
First
thing's first, you will need to access the windows registry in order to
do this, as with all unity games. (If you don't know what this means,
or are not comfortable doing this, then it's probably not a good idea to
continue, as you can cause problems with windows if you don't know what
you're doing)
Navigate to the Folder HKEY_CURRENT_USER/SOFTWARE/Kinelco & Lone Elk/Vertiginous Golf
Right click on the folder and select export. (This will backup your save data)
Save the file somewhere convenient.
You have now backed up your save data. (do this after every successfully completed hole, and every successful shot)
When
you make a mistake and want to reload your previous save, drag the
recently created .reg file you made back into the regedit window, a
message box will say that the contents have been added to the registry,
go back into the seating area and select the course you were just
playing and you're back to the last hole you saved your progress for, at
the
start of the last shot you saved at.