N has been described as reminiscent of Lode Runner--you're a little dude running around in a puzzle world inhabited by enemies. In N, however, there's a twist; the ninja is driven by a thirst for gold in a crazy world with realistic physics. Death, which happens often, is quite animated. N also contains a level editor, called Ned, which you can use to create your own maps.
Version 1.4 adds 200 new levels (bringing the total to 500), including 50 levels made by users. The level editor has also been improved, and unlockable secrets have been added.