an activation card; it simply provides instructions on where to download the Bloody 7 software User Manual : A paper guide (like the AT87 Quick Start Guide

is the proprietary software designed specifically for A4Tech’s "Bloody" line of gaming mice. While it serves as a central hub for basic customizations like RGB lighting, DPI sensitivity, and button remapping, its true identity—and the source of significant controversy—lies in its advanced macro and "Ultra-Core" features.

. It is primarily known for its powerful "Cores" system, which allows players to automate complex gaming actions like recoil suppression and macros Getting Started Download & Installation : You can download the software for free from the official Bloody website Hardware Connection