This hack of Ninja Gaiden Episode III - The Ancient Ship of Doom, created by MottZilla, modifies the original NES game. Specifically, it introduces an 'Easy Mode', altering the game's difficulty.  Easy modes are commonly implemented to provide a more accessible experience to players who find the original game's challenge too high.  It provides an alternative way to experience the story and levels, developed by a fan rather than the official publisher, Tecmo. The hacking community often produces modifications like this to enhance gameplay. 

Ninja Gaiden Episode III - The Ancient Ship of Doom (USA) [Hack by MottZilla v1.0] (Easy mode)

Ninja Gaiden Episode II - The Dark Sword of Chaos (USA)