Misc: name the character played by frank sinatra in films such as lady in cement?

Questions

Video Games: One of the first 3-D screen games, it had a ship resembling the space shuttle.?

Video Games: One of the first 4-player, speech synthesizer games, featured Valkyrie and Elf.?

Video Games: Tetris game where the object is to stack objects on people's heads.?

World History : What was the Japanese warrior class that rose to power in the 11th century ?

World History : Where did the Incas originate ?