Roboto

You are a small robot named Roboto, an ordinary boy who recently learned to ride his new racketboard, but the trouble is that his beloved girlfriend flew to another planet. Now he, that is, you must get to the ship, on which you will go after her to the neighboring galaxy. But the path will not be easy, as other robots, both large and small, will want to interfere with you. You may be lucky and you will stumble upon one of the bonuses in the form of an upgrade or coins. And superb HD quality graphics add even more interest.

It was paid, but now it's abandonware. I think I can share it here for free.