What are secret areas?
- Secret areas are additional spaces that are usually hidden from the player and require thoughtful effort to access them.
- They delight the player by offering something that rewards him/her for his/her effort.
They should provide the player with a significant reward for accessing them (be it a power-up or an unusual area) otherwise the player will feel that his/her thoughtful effort was wasted.
In some instances, the player may have to exit the secret area from the same route that s/he used to access it. If this is the case, then it is even more important that the alternative route offers something of interest to compensate the player for crossing a space twice.