A four-armed design that came out pretty well in my opinion. Uses Yuri's hand design. Note: The designation number HD-02 stands for something, like how the ND-04 stood for "Norse Dragon, level 4, or Hel, the Norse underworld, which is where the Nidhogg essentially is. The head is actually two heads, with the white one being used like a creepy-looking mask.
The Shiva is also a RIP mecha, with considerably more power than the Nidhogg. In two hands, a massive spear that can pierce anything. One hand is a massive claw with considerable crushing power. The small claw is dexterous yet sturdy, working as a hand for delicate procedures. The AI is considerably more intelligent than the Nidhogg's. It "is" a mid-twenties woman in a priestess outfit named Tyrande. She is very serious during a mission, but during break, she is often outgoing and humorous.* She has considerable control over Shiva, even to the point of defying the pilot and preforming complex maneuvers. Her pilot is kept safely inside the small tank-like vehicle. Indestructible, fast, and capable of blending into the Shiva's shadow due to it's all-black paint job, it is perfect in design.
*All Sirrushian AI's have an android body that they are uploaded into when not in combat. This enables Ai's to preform a wide variety of tasks. This android body is also carried with the mecha, in case the mecha can't reach an area, or is too big to solve a puzzle.
My next creation will be the "Wrath of the Wyvern", a miniscale Bio/Technic model of the Sirrushian battlecruiser that serves as the HQ of the Sirrushian Dragons.
Wonderful Bionicle, nice minitank and intriguing AI concept (I really like the idea of the body switch). Same problem as always: absolutes like "anything" and "indestructible" don't sell it. Try "incredibly sharp", "extremely tough" or something like that: limitations are what make sci-fi realistic. And, adding some system to the bionicle part of the MOC helps to scale it up. Overall an excellent one!