It has an additional 100 episodes added to the game. It has added two new modes for the game: speedrun mode & underclock (slowdown) mode. It blocks the direct usage of speedhack. It supports online level highscore recovery (by ctrl-clicking your online score).
Unreality has added new features since it was released. The most recent version has these updates:
It allows for the use of foreground and background images in maps, such as the one in the image demo map. It can change variables associated with the in-game objects, such as gravity, the ninja's size, and the zap drones' speed.
Recently, NReality has been updated to include rotating laser drones and the ability to save demos played in userlevels or the normal game where the ninja dies. Currently, Unreality is working to make Force Field Drones like the ones in N+.