Excellent tutorial! Colors are well chosen and the game looks great, I would increase the speed of the base unit as sometimes it can feel a little slow between nodes. Another quick note would be to change or remove the sound of going over a node as I felt it was a little more grating against the rest of the aesthetic! Its been said but repeating areas (seemed like I couldn't boost off the nodes I already had?) is a little bit of added tedium. Ultimately I think this game executes well in presentation and felt polished. Nice submission.