It is a great innovation and challenge to combine artwork with a game as you need to balance the visual effect of the artwork with the difficulty of the game. I am really glad to see that you guys make use of the portal mechanics in the color region which is a great idea when the player's control is limited by the rules themselves. One suggestion would be when I watched the demo, I am quite confused as some portals cannot enter again after left, and how I, as a player, are enabled to know that? Or, how can I determine which one of the portals, or which side of one portal, can be entered? I believe more instruction or guidelines can be made so it can be more player-friendly.