Nagai-Oh

Mascot for the facebook group "Mechanauts". Basically a combination of Mazinkaiser, Shin Getter-1 and Grendizer. Based on description by Sean Macleod.
Weight: 609 tons.
Attacks:

ICBM Punch: Combines the monofilament blades of Grendizer, the high speed turbines of Mazinkaiser, and a Getter powered propulsion system to launch its forearm at ultrasonic speeds at the target. So powerful that it creates a shock wave on par with the Czar Bomba (Minus the nasty radiation) and ignites the nearby air turning it into plasma.

Mao Dante: Extends the horns on the side of its head and generates an extreme electrical storm, channeling and firing a bolt of lightning with an average power output of 100 Quadrillian volts.

Devilman Flare: A Getter Shine Spark esque attack, amplified by the Photonic and Hanjuuryoku energy systems. Takes the form of Devilman.

Jeeg Storm: Charges the Getter Rays of its nearby surroundings with photonic energy, draws them into the mouth grill, and fires them back at the enemy as a particle beam tornado.

Groizer X: Locks onto surrounding enemies and precision targets them with laser emitters that reach the terrawatt range. 

Psycho Arm: Uses the three energy sources in synch to create a colossal anti-warship cannon. 

Violence Jack: Produces a gigantic Jack Knife with an edge so sharp it can cut through space-time. 

Nagai Nova: Chest Plate opens up to reveal an enormously powerful beam cannon. At maximum firepower, it is capable of annihilating Galaxies.