Good launch game.
As far as launch games go, this one was good. The artwork wasn't bad, though the music got annoying after a couple of loops. Perhaps next time add a few different songs.
The bear was quite amusing with his different gadgets when the launch ended (particularly Robotnik's vehicle), so it has a nice little humor factor too.
One thing that makes a really good launch game, in my opinion, is interactivity. Turtle Launch and Hedgehog Launch are two of my favorites because it let's you do a little more than just launch and sit back. While you did give the option for the player to use the Bird/Rocket boost, after that it was just sitting there waiting, and I would usually go tidy a couple of things or grab a drink while until he stopped. Perhaps think of a way to add more interactivity next time.
Overall, well made game, especially for your first game. Keep up the good work and do your best to read the reviews and learn how to improve for next time.