I've just beat the preview, and Sophie, this game is amazing. so simple, so awesome. Wonderful, I'd give it a 10/5 if I could. Favorite of my favorites! The simplicity of this game is amazing, and yet, incredibly complex levels can be made, like level 10. If you can, for the full version, make a world-maker, it could be awsome.
This game should have an impossible badge for all achievements. also, the multiplayer part should seriously improve here. make it live, like kongai, and not just against an auto built by someone else.