The site is running kind of slow so I just did the first couple levels... The directions (e.g. forward vs left) were a little confusing as you can't tell which

The site is running kind of slow so I just did the first couple levels... The directions (e.g. forward vs left) were a little confusing as you can't tell which way the character is facing at first. Not a problem after level 1 though. I second gerggerg's suggestion of step-by-step animation, along with highlighting as it runs each line of code. That would really help drive home the point for non-coders. Are you capturing incorrect responses to see what common sticking points are? For example, I thought .feel() returned a string at first before eventually having to look at the tip. Awesome idea though! I've been working on something very similar that I hope to share soon.