Ninja Gaiden's New PC Port Is One Of The Laziest I Have Ever Seen - Kotaku
To return to Windowed mode, press the Esc key while in Fullscreen mode.
Throw in the fact that a warning on the store page says it, “Requires a controller in order to play!Playing with a keyboard and mouse isn’t supported,†(you can’t even navigate the main menu with your keyboard) and you’re looking at one of the most useless PC ports of all time, maybe ever from a major publisher.