Way too easy, but fun while it lasted
Yeah, no cross-all-the-paths game is going to be that hard when the player realizes than any junction with an odd number of paths leading out of it is either the beginning or the end of the route they need to take. It's an inherent flaw of the entire type of game.
It was still fun while it lasted and all, it just didn't take long to blaze through when you knew that trick.