A level in N++.
Levels are tile-based rooms that the ninja navigates through within the games. The goal of a level is to get the ninja to the exit, which needs to be opened with the exit switch.
Throughout a level, the player may collect gold (which increases the timer), interact with objects, and/or avoid enemies.
Levels in the base game are parts of an episode, a series of five levels which must be played in order within a time limit. The levels can be played individually after completing the episode.