There is a step-by-step tutorial (3 videos), and it's the one related to the construction of the game "Space Pong". Surely there are many things I should talk about, but I have been very focused on the development of the 1.5.x release (to add the multiplexer) and the upcoming 2.0 that adds the multi-directional scrolling (which is very challenging). After that I will start publishing videos to explain many things and tutorials.