I don't have any answer for you on Mario Golf (bought the digital version because it was cheaper for me to do so), but you did get me thinking. Since this is the "Powersaves 3DS - FAQ and the other thread has degenerated into a full blown Pokemon page, why don't the few users that still use this thread pop in some of their carts in Powersaves and document the available Powersaves and Codes? I've busted out some of my carts to start, and maybe others can jump onboard and expand the list. These are just a few of my carts, but it is a start.
Zero Escape: Virtue's Last Reward
Powersaves
100% Complete
Kirby Triple Delux
Codes
(all codes are for save Files 1, 2, and 3 and are identical)
All stages unlocked and Sun Stones Collected
All Keychains Collected
All Movies Unlocked in Theater
Luigi's Mansion: Dark Moon
Powersaves
01-First Level Completed, Max Cash, All Upgrades Available
02-World A Completed
03-World B Completed
04-World C Completed
05-World D Completed
06-World E Completed, before the boss
07-Story Mode Completed, All Upgrades, Boos, and Gems
Castlevania Lords of Shadow: Mirror of Fate
Codes
Save Slot 1 Codes
1. Massive Amount of Health
Mario & Luigi: Dream Team
Codes
Save Slot 1 Codes
1. Coin Codes
A. 999999 Coins
B. 999 Coins
2. Level Up Codes
This is an empty folder
3. Item Codes
A. 99 Mushrooms
B. 99 Super Mushrooms
C. 99 Ultra Mushrooms
D. 99 Max Mushrooms
E. 99 Nuts
F. 99 Super Nuts
G. 99 Ultra Nuts
H. 99 Max Nuts
I. 99 Syrup Jars
J. 99 Supersyrup Jars
K. 99 Ultrasyrup Jars
L. 99 Maxsyrup Jars
M. 99 Candies
N. 99 Super Candies
O. 99 Ultra Candies
P. 99 Max Candies
Q. 99 1-Up Mushrooms
R. 99 1-Up Deluxes
S. 99 Refreshing Herbs
T. 99 Heart Beans
U. 99 Bros Beans
V. 99 Power Beans
W. 99 Defense Beans
X. 99 Speed Beans
Y. 99 Stache Beans
Z. 99 Taunt Balls
AA. 99 Shock Bombs
BB. 99 Boo Biscuits
CC. 99 Secret Boxes
DD. 99 Heart Beans DX
EE. 99 Bros Beans DX
FF. 99 Power Beans DX
GG. 99 Defense Beans DX
HH. 99 Speed Beans DX
II. 99 Stache Beans DX
Fire Emblem: Awakening
Powersaves
Start a new game with max cash (Normal Classic Mode)
Codes
Save Slot x Codes (all are identical for slots 1, 2, and 3)
1. Max Cash
The Legend of Zelda: A Link Between Worlds
Codes
1. Save Slot 1 Codes
4. Master Sword (Level 2)
5. Master Sword (Level 3)