Looking for an old anime with a blue robot that was found by a boy. That robot lost his memory. The face of the robot was on a display. I don't remember very well; they were fighting together, and that blue robot was very powerful. If I am not wrong, I can remember also a scene where there was a fight scene near two sky towers.
This isn't FLCL (Fooly Cooly) where Canti would have been the robot. The robot looks very similar to the robot from the movie, real steel.