Shadow The Hedgehog Easter Egg - Nights Hidden in Shadow The Hedghog

In the level Lethal Highway the second you land on the high way move a little further and look right. you will see a billboard that has the picture of the game Nights which recently came out for the Wii.
When the first piece of the highway explodes( a little after the first checkpoint) fall. when you get to the part when you need to go up look to the left and there will be a bill board with a picture of a car. It's really hard to read but it says control chaos on it and if you reverse the order of the words it says chaos control.