Infinite Cube Run

If you can, why not create it so that a random stage is generated everytime you play the game? Also, why not put a page with your personal Top 10 scores, plus a Top 100-or-so worldwide players, and you could compare your scores to others. Maybe perhaps an upgrading system. Overall, good game and has lots of potential.

Good start.
The game design isn't really define and it's pretty strange. Why a cube, strange jump and double jump. Maybe the screen is to large.
For a first game you get the idea of that kind of game but you'll need more detail to make it really interesting.
Good luck with that ;-)