StarCraft - Zerg Ultralisk

That's a Zerg Ultralisk unit from StarCraft game universe.

"The ultralisk is a 20 meter long and 5 meter high living battering ram (...). Ultralisks serve as the backbone of the Swarm, possessing an exceptionally thick carapace.

Ultralisks attack using large, bone-like scythes which protrude from their backs. Known as "kaiser blades", these scythes are nearly indestructible. Possessing monomolecular edges, these scythes are able to tear through most substances with ease."

~StarCraft Wiki ([link])


That's how it looks in original game:
[link]

and that's how they were supposed to look in SC Ghost:

[link]

[click 'download' for full size]