Maze Tutorial is for Unity 4.5

Something I forgot to mention is that the Maze tutorial is for Unity 4.5. It's using serialized structs, which don't work in older versions.

To make it work in Unity 4.3.4, you'd have to change IntVector2 into a class. But then you have to make sure not to change the coordinates, which the + operator does, as it would corrupt existing coordinates and screw up the maze generation. Each cell should explicitly get a new coordinates vector.