Assuming you have a hacked 3DS (which is legal in most regions for homebrew), follow this guide:
The earliest methods relied on extracting your save file and utilizing specialized desktop tools to inject items manually. PC or Mac. terraria 3ds inventory editor hot
This comprehensive guide covers how to access, edit, and safely manage your Terraria 3DS character inventory files. Understanding the 3DS Save Structure Assuming you have a hacked 3DS (which is