This game is pretty bad in almost every aspect - getting #3 on robot day makes one think about the competition...
First off: This is a platform game.....? Apparently. It's also short, too slow-paced and lacks the "robot factor" - this means everything in the game could have been replaced by something else while retaining (if not improving) most, if not all, it's original properties.
Simply put: There's no reason for the robots in this game to be robots. I also think that mixing up the 4 elements with robots in a "natural" way makes almost no sense, and even less when it goes to "fight evil" because robots are not really into the moral fields.
Second: Since the platforming part is really bad, playing experience relies almost solely on the story, which is kinda generic and does not make much sense. All this makes for a rather unpleasant experience - I find myself playing only for the medals.
Now, I'm not saying this style isn't good. It was just badly executed on this particular game. There are similar games (many of which I liked) that focus solely on story, leaving the platformer thing simply as a way to tell the story.
In short: develop story better, remove trick jumpings (actually, remove ALL jumping and whatnot) and make movement faster and more "levels" and entities to explore and interact.
Graphics are nice, I liked the robot and guardians design. Sound, too, was fine, although at the end, music won't stop, making for a rather anti-climatic situation.
Overall rating: 2 stars. Had lots of potential, but execution blew it up. One can say the game was "executed" twice.