XENOROID!

Xenoroid is an advanced biomechanical alien construct from a faraway galaxy. This titanic weapons platform impacted the earth and now razes cities to the ground with its slashing and whirling claws, Gauss blast, and far stars disintegration beam!

The xenoroid is an evolution of this earlier concept: https://www.artstation.com/artwork/QXNEE
This character rounds out the 3 primary character classes in the game - Beast, Bot and Alien. Each of these classes has unique defensive and offensive benefits on the battlefield. Alien forms like the Xenoroid will tend to be offensively powerful, but require more energy and be less durable than a beast or bot.