Good, but dull
It was pretty good, but there could be more to add. To follow old game forumlas, you could add some kind of power up. Say perhaps you widen the playing field, have a sprint command to get back and forth faster, and maybe have a power up to run faster or have unlimited sprint. You could have a power up to get something like a wheel barrow which allows you to cover a wider space.
Just think of some creative stuff and if it gets too hard thinking about it, play some other games for inspiration. Hope this helped.