Limb Hacker hacks limbs. Slice animated characters in real time on mobiles. We include our Sniper Demo (below) and complete sources. Slicing with Limb Hacker is delightful. Its public methods let you sever limbs by bone name or by a point world space. Play Sniper Demo to see it in action, or try the Precision Demo. You may also read the manual.
Find it on the Unity Asset Store.
If you already have Limb Hacker, you may download the demo sources for Unity 4. This package includes both the Precision Demo and Sniper Demo.