Very cool idea. The variable stepwise movement combined with the forced color placement makes even seemingly simple puzzle quite tricky!
I got to level 13 before it started frying my brain haha. A full version of the game would hopefully have a somewhat shallower learning curve :)
My only note would be to add a key for 'Next Level', having to reach for my mouse to click a button broke the flow for me.
Awesome game, Thanks!
-Irish Ronin