Using a patched version or a "crack" (like Activator5.exe ) to bypass the official activation is highly discouraged for several reasons:

Bloody mice use a multi-core system to categorize performance levels. While Core 1 and 2 are usually free, the features are often locked behind a one-time purchase:

Attempting to force an activation onto the mouse's onboard memory via unverified software can lead to firmware corruption, potentially "bricking" the device. How to Get Activation Legally

Adds "Auto Recoil Suppression" and "Trajectory Adjustment" to help with aiming in shooters.