The game is okay. I think music could help enhance it. Other than that, UI could be moved to a menu instead of hogging the screen; I also don't need to know my speed.
Speaking of speed, if the speed was faster, with less obstacles in-between, I think that would make for a more exhilarating challenge.
I think the game also lacks some dynamism. At its core, this game can be translated into a game where you switch gravity. However, the game with switching gravity looks more appealing and interesting because your character additionally moves on the y-axis.
I'm not saying that this game should be about switching gravity, but instead of red obstacles being on the floor or a wood wall, maybe they could instead be projectiles from the sky? I'm not sure. The game just needs more movement/action.