Hello and welcome!
This is my difficulty modification for the first Shadow Hearts I named 'Imbroglio'.
It alters enemies making them have more health, agility, strength and magic.
In addition to the stats increase I changed Sandalphon's 'Revive' ability. Now it doesn't revive and heal party to full health, but instead revives and heals the amount based on Yuri's magical power, just like the Light class fusions before it.
Another change is that characters learn their 3 last skills way later (when Alice learned 'Arc' before at 35 levelled now she learns it 70 levelled instead).
NOTE: I lowered the required level for the 3 last character abilities starting with v1.1. From there on Alice learns Arc 63 levelled (level requirements are x 1.8 of the original).
In this mod you are required to be higher level than before in order to progress in the game. Increased experience and cash from enemies will help in that. You have better chances at the final boss the higher level you are and the more sidequests you have completed. It is recommended to do the final boss maxed out (99 lvl).
I wasn't able to find the values for the scaling enemies from the code so those remain unchanged unless some helpful person will be able to help me in that. Fortunately those are only the Fusion battles and the Malice lowering battles (and also the scaled Fox Face if you dare facing him).
Give my mod a go if you feel like it.
You need to have the original disc image of Shadow Hearts NTSC-U. Then patch that image with the file from the zip using 'ppf-o-matic' tool.
Here's the download link:
http://www.mediafire.com/file/b4i3qdspqr3bypd/shadow_hearts_ntsc-u_imbroglio_1.3.zip
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Here are the previous versions if you want to try these instead, however the newer version is improved.
http://www.mediafire.com/file/qkbhz4zgzzsmvcb/shadow_hearts_ntsc-u_imbroglio_1.2.zip
http://www.mediafire.com/file/4aku2ftbd7dvdm8/shadow_hearts_ntsc-u_imbroglio_1.1.zip
http://www.mediafire.com/file/see5y0jrhxgjsr8/shadow_hearts_ntsc-u_imbroglio_1_0.zip