Simple idea but it works. I liked it, especially taking into consideration you made it in a few hours. I'm not sold on the colors though; maybe arrows would be easier for people to understand (after a while you get used to the colors so it could just be arrows as well). 

But apart from that nitpick, I enjoyed it :D

Wow, simple concept and greatly done. Had some fun with it. congrats!

I knew that there was something to do with the color on the robot. I did not fully understand the controls but I managed to realize each color has one correct direction. The way I controlled the game was I pressed the direction I want to go but release it immediately if it was not the correct color and then hold it when it is. 

I liked the a-ha moment in the first and second levels, at first I thought the game was "do a random walk to the goal." Also neat to see how quickly adapting to the "controls" happens.