The goal is to make it Nano say "You Win". If he says "You Lost", that means you lost. You will need to click "See Inside" to modify some of the code, to solve the puzzle. After you change the code, click the green flag to see what happens. Important: Do not modify any of the code in the Nano sprite. That would make the puzzle trivial. But you can change any of the code in any other sprites. I thought about making this a series of puzzles, with varying difficulty. From easy, to medium, to extremely hard. Where the extremely hard ones would use very advanced programming topics and stuff, and probably take a long time to figure out. But I lost motivation after making this one. Maybe if people are interested, I can go on to make a medium and an extremely hard coding puzzles like this.