Nicely done
This was very informative. Each of the separate points of the topics you covered were fully expalined. The layout was okay, and you had back buttons as well as forward buttons, which was nice. I did notice a glitch though: After I killed the first guy, went to the next or previous thing, and came back, I couldn't kill him anymore. The same goes for the very last thing. Other than that, however, it was a really informative tutorial. Nice job!