In the year 2029, evil Emperor Garuda somehow establishes a dictatorial government in the United States. After many lives are lost, two ninjas attempt to overthrow him.

Shadow of the Ninja is one of the rare games in which constantly jumping and slashing is faster than regular running. The author makes sure to use this move extensively both to travel and to deal damage to enemies, and so it may seem that the ninja has a severe case of ADHD.

This game was released in Europe as Blue Shadow and in Japan as Kage.

dragonxyk improves the previous run by 1:05.11 minutes by using 2 player mode and intentional deaths to speed up gameplay.