The Big O

From MechaWiki

The Big O

"My name is Roger Smith. I perform a much-needed service here in this City of Amnesia." "This place, Paradigm City, is a town of forgetfulness. One day forty years ago every person here lost all memory of what had happened before that day. But humans are adaptable creatures, they make due and go on with life. If they are smart enough to figure out how to operate machinery and electricity, they can have something of civilization. People can survive without knowing what did or didn't happen in the past. And each day they try their hardest to do just that. The only people who regret the loss of these memories are the city's elderly. But memories, like nightmares, can come when you least expect them." "BIG O! IT'S SHOWTIME!"

Throw in a loli android, and a kickass one eyed butler, and you got the essence of Big-O. Some say Big-O is Batman with mecha, but that's actually Might Gaine.