Overview
I came across this by complete accident and didn’t see it on any other guide, so here I’m sharing this ridiculously easy way to get the achievement as well as the rewards for the minigame. No autoclicker needed but you do need a very popular mod called Moguri.
INSTRUCTIONS (MOGURI MOD REQUIRED)
Following the instructions on the site, install the latest Moguri Mod which you can get at [link]
Open the folder in which you’ve installed the game. Default path should be C:Program Files (x86)SteamsteamappscommonFINAL FANTASY IX
Locate the Memoria ini file and open it
Locate RopeJumpingIncrement and change the number to something more feasible like 50, 100, 200 or even 1000 already
Walk away with the rewards
As a side note, you can also use this method to change Quina’s Frog minigame as well as Hippaul’s race!