I-Ninja — The game begins with a ninja in training (whose name is simply Ninja) sneaking into the enemy camp to save his sensei (who is simply called Sensei) from the "Ranx" warriors (also known as Ranxlings) sent by his nemesis enemy of the Ninja, Emperor O-Dor. The ninja, having defeated all opponents, frees Sensei from the shackles. Suddenly, an unknown creature emerges from the ground, clearly not in a friendly mood, but the Ninja easily defeats him too.