Aright. I finished the game, with three stars on all levels. As you can see from my score, I ejoyed the game. However, there's a few things I want to mention.
Since this game has so much potential, I would have considered making the first levels... No.. Actually adding a few levels before your first levels, apart from the tutorial, that would be slightly easier. I too made a game for this Stencyl Jam (thanks for playing it, btw), and I know that other people won't be as used to the physics/gravity as you, as the developer are. So a few more introductionary levels would have been nice. Also, If possible, I'd have liked if the levels restarted slightly faster after you fly off screen, since at least for me, this happened often. That is just a personal preference though.
You did a really good job with the medals in this game, btw!
Most of the level design was pretty good, although I would have changed the order of some of the levels. However, I've got no examples of such levels anymore; it's not a real issue.
The grafics, are perfect.
I, again, personally, would have liked it if the gravity switched slightly faster when you press one of the 'wads' buttons. As of now, you sometimes had to be very exact, so I'm thankful for my fast reflexes.
Finally, and this is something I almost never say, I think you should have chosen a nother song for this game. Don't take me wrong, I enjoyed the song at first. The issue I have is that the loop is kinda short, and above that, it's extremely repetitive. Also, I would've liked seeing who made the music, or if you made it yourself. Good choice for including a mute button though.
Thanks for a fun gaming experience, and I wish you luck in the contest!