Yeah got it!
I checked it two or three times to know how to correctly build the scenario.
It was the only thing I didn't know.
Thanks for posting the tutorial link!!
Good! So I would put the link I shared in your description, until you have your own graphics, sound, level design, etc.
I would say that the programming from the tutorial is optional as to whether or not to cite it (it is kind of open source after all), but the graphics, sound, and level design, I would pretty much say are a must to cite.