Nice! But Scratch? Really? Maybe it's a good choice for beginners but I have a grudge against it. I could never get used to it and they didn't have an undo function until recently IIRC. Blocks really make things easier but you can't move sprites out of the scene and that kinda sucks. No offense to you, it's all against Scratch I haven't checked it out but I'm sure it's a great course. Hope you'll release further courses. Have a good one!