Thank you so much for your comment and feedback. Constructive input like yours really helps improve projects. Due to the limited time of the Jam, I went for a simple mechanic that could work for all kinds of players, experienced or not. I think it turned out quite well, since anyone can jump in and play. I didn't have time to clearly differentiate the levels, which can be confusing, thanks for pointing that out! Just to clarify: the game has 5 levels, and in each one you need to light up the nodes to activate a cube. Each cube reveals a milestone in Unity's 20-year journey.
Again, I really appreciate your thoughts. Now I'm off to try your game :). Best of luck in the Jam!