Reminds me of those super meatboy-type games where completing the level is like a puzzle. And then you get sucked in by all the near misses and close calls. Solid idea, and I think it can be a success with some refinement and input (in particular from those who play games in that genre, not me lol.) Also, the save feature is nice, I can quit the game and come back to the level at any time.
Some notes :
1. At some point you might want to try setting up native Linux support.
2. Might want to set it up so that the executable can be run from any directory (probably not much of an issue for most users since they are just going to double click the file on Windows anyways)