If you are looking to modify student stats like height or BWH, you can use the Character Editor by Kirara Kurashiki.
Gal.Gun.Double.Peace.zip Category: [Mod / Patch / Save File / Resource] File: Gal.Gun.Double.Peace.zip ...
For Steam users, the default is usually C:\Program Files (x86)\Steam\steamapps\common\GalGun Double Peace . You can find this easily by right-clicking the game in your Steam Library and selecting Browse local files . If you are looking to modify student stats
For completed game saves, check the Gal*Gun Resources on Speedrun.com . For completed game saves, check the Gal*Gun Resources
Open the .zip file and extract its contents into the appropriate subfolder (often \GG2Game\CookedPC\ ).
This package contains [insert what is inside, e.g., the high-resolution texture pack, character editor, or complete save data]. Installation Instructions:
If you experience crashes, ensure you have the Japanese IME installed or try verifying your game files via Steam.