Shinobi Easter Egg - "Kill U" Ninjutsu Message

When you reach the first ninja boss (located in level 1). You will notice that some of the rooftop lights are broken.

Run away from the Ninja as fast as you can by dashing towards the corner of the building rooftop to fully notice the change on the wall.

At first you will see nothing but give yourself a moment, after about six seconds you'll be able to see that the walls message is actually in the shadows and not in the light.

At first you will think it says "Skill Up" in English, which to the programmers at Overworks are trying to say to beginner players using "easy-mode" to practice.

But then the lights break again and a new message forms. Only this time it's in japanese, it says "ŽE‚µ‚È‚³‚¢" which means "Kill You" in japanese.

This is a bit humorous because Overworks in Japan is known for creating videogames that are too difficult to play.