Interesting. A little cheerful, but good.
Great job on this rendition. It remains true to the original, has excellent sounds. The only things I would have to complain about is lower the pitch slightly, as well as a lack of a solo of some sort. This theme seems a little cheerful for a robot master that deals electrical death. XD
Other than that, you did perfect here. Not much else you can ask for. :)
My ruling
-------------------
10/10
5/5
-------------------
Keep it up. You're getting better, and eventually you make other artists eat your dust. :P