I know anyone can be intuitive enough to guess but could use instructions on what the objects and their colors mean (on earlier levels, maybe?); Otherwise, it's a good game concept with lots of room for improvement on the technical side (graphics, sound looping/quality, etc. I understand this is a demo though).
Worth playing, overall.
Ok mabey its just me but it seems there is no possible way to get past level two if it is just extremely hard you should say so not "You'll experience frequent frustration but also the great feeling of accomplishment as you use your mind and dexterity to complete puzzles and get through each challenge." you should say this is extremly hard you have to use intense brain power