This project looks cool and its video is really well-made. The segment with Frank works perfectly to explain how to play the game, while still managing to be entertaining.

Honestly, from the title screen shown at the start of the video, I was expecting the project to be a quick Minecraft hack and the video to be the standard geek talking in monotone over screen capture footage. I was pleasantly surprised when a fully animated turtle dropped on to the screen and then it soon cut away to the split-screen shot that shows you the 2D plane in the 3D world.

I don't really have any feedback about the game itself because I haven't had a chance to play the demo yet, but I just wanted to say that it's evident that a lot of effort was put into this game and the presentation video.