I'm going to have to agree with erik. The controls felt more frustrating than fun - in fact, it didn't feel very fun at all. Whenever I beat a level (got up to about 7 before I quit), I felt relieved instead of accomplished. The concept of the game is great so a few tweaks could go a long way.
My suggestions:
- Make Left and Right turn your character's facing, but not jump.
- Make a button for a single jump.
- Make a button for a double jump.
- Add another layer of puzzle/strategy with mid-air blocks and platforms (this might already be implemented and I just didn't get far enough to see it).
It has potential, though, and I will enjoy seeing how this develops.