marble madness takes less than five minutes to beat, but over the years, i know i've spent quite a few hours on this game. the marble feels great to control, and being able to go at two different speeds is very helpful at times. the graphics are honestly great for the nes, and the music tracks fit the stages well and soothe the ears. all the obstacles in the game are very fair and easy to understand, and when you die, you get back to the action right away. i just love everything they did here!