Difficulty

is a recurring mechanic in.

There are four HWDE: levels in : Easy, Normal, Hard, and HWDE:, with HWDE: HWDE: only being unlocked after beating all NaN Scenarios. In the original, only the base-game eighteen NaN Scenarios needed to be beaten, but in and , all thirty-two must be completed. Higher HWDE: levels will make NaN Enemies deal more damage and have more health, but will also increase the amount of NaN Rupees gained upon completion of a HWDE:. HWDE: may only be applied to a HWDE:, and not HWDE: battles. In each HWDE:, there is a HWDE: that may only be found while playing on Hard or HWDE: HWDE:.

In, the HWAoC: modes Easy, Normal, Hard, or Very Hard may be chosen for any HWAoC: or HWAoC:. As part of the Downloadable Content pack, an Apocalyptic HWAoC: mode was added. The HWAoC: level alters how much damage NaN Enemies do, as well as how much damage it takes to deplete their HWAoC:, but it does not effect the number of NaN Rupees gained, nor any other rewards.