I thought the robot was really pretty and I liked how it changed color. One thing that bugged me (playing on browser) was that I had to click after every restart or shop visit to reset my cursor to like.. "fullscreen mode" where I could keep turning in one direction instead of running into an invisible wall at the edges of my screen, if that makes sense. It wasn't a huge issue but it was kind of annoying and cut into my precious energy. Fun game!