The theme of Eggman from Sonic Adventure Stylized in Megaman X, although i imagine if Eggman was in replace of either Wily or Sigma in that case however...
Please contact me if you would like to use this in a project. We can discuss the details.
* Cover / remake of a third-party piece.
Excercise caution when using it, refer to author comments / contact the author for details.