The designer uses blue, green, and black in this game of the first few rooms, which makes the player feel like they are really in the environment of a computer. Besides, the green used is very bright. It is easy for players to find out useful items. For example, the problems to be solved and the exits. Considering this game is for students to learn to convert binary to decimal. Cool colors like the color of tile—blue, making children feel calm and not irritable or restless. The background of each room becomes lighter and lighter. It's a great way to tell players you're getting closer to victory. In the last room, the background turns from black to white. It makes me feel like that I've overcome the difficulties and come to the light, leaving the virtual world of the computer and came to the real world at the same time.
There are not very many types of tiles but is easy for players to know the area of operation， helping players have a clear idea of where they should move next in the game. In the last room, the walls on the side are made up of zeros and ones, which fits the theme of the whole game.
The second room which is the first one to choose the answer brought lots of attention to me. It cost me a little time to figure out how to escape from the room. But it is still clear and easy to find the right way to do it.