Needs work.
Me being nice; the game has a lot of flaws, with a surprisingly decent control scheme. The jetpac should feature a hover function, or maybe even a chart that explains what the controls are. The levels aren't difficult to me honestly, it's getting through them. The contact boxes on every collide-able object in this game is so enormous it makes what would make a challenging level into hell. I was able to come to this conclusion by about level 12, but I decided to keep going just to make sure I wasn't being an ass. About 6 levels later, I realized that I wasn't being an ass; the developing was just that bad. Not that you can't make it better. And I hope this doesn't discourage you. Please; by all means, make a sequel. Just implement better game mechanics, and pickups for your steampack.
Also, bats? Really? Broad daylight.
Please keep making platformers and good luck next time.