Rodea the Sky Soldier was announced back in 2011 for the Wii and 3DS systems, and is finally releasing for the Wii U and 3DS systems!

Control Rodea, a humanoid robot soldier, and soar the endless sky above the Sky Kingdom, Garuda!

Rodea, the legendary machine, awakens from his slumber...

  Garuda is a prosperous kingdom that floats in the sky.
  One day, an adventurous resident of Garuda named Ion discovers an ancient machine soldier buried in an ancient ruin. The soldier refers to himself as "Rodea," but his memory is corrupted and his right arm is completely destroyed...
At the same time, Naga, the ancient machine empire, returns after 1,000 years of dormancy and sends their forces to invade Garuda for their precious reserves of Graviton energy. To protect the citizens of Garuda, Rodea and Ion decide to fight back against Naga's machine army and stop the invasion!
The sights and sound of war... The truth surrounding Naga... A young woman whose likeness resembles Ion... These fragmented images are all that remain of Rodea's lost memories. Take to the skies and unravel the mystery behind Naga and Garuda!
  Fragments of Rodea's memory paint a picture of a violent war and a mysterious young woman.
  These lost memories all connect to an event that took place in Naga 1,000 years ago.

Soar the sky and explore a vast world

  Rodea the Sky Soldier is a sky-adventure game that lets players soar the sky as they explore an exciting new world.
Use Rodea's abilities to fly freely throughout the world.
Collect energy crystals called Gravitons and stand your ground against the invading mechanical soldiers of the machine empire.
  Fly in dynamic curves and shoot down enemies. Utilize Rodea's functions and abilities to fight your way to victory.
  A powerful enemy named Odeon awaits Rodea amid a beautiful silver snowbank.