Really beautiful game. I love the colors, effects, and controls... just a pity I have no idea how to pass the first blue marker. I think it's got to do with keyboard controls...
Hey, thanks for your kind words! I think I need to make the button prompt much clearer - hold Left Shift and use WASD on keyboard to change the colours. :)
Great... silly me... ok that works! but yeah i think the UI needs a little more clarity. took me forever to figure out how to get to the next level... nonetheless awsome game!