It is a good idea, and the theme and special object are implemented well. With more time to flesh out the gameplay and polish, it could be a great game. As it stands, it was a bit hard to control, it lacked some polish, and also something to make the gameplay a bit more interesting, as I didn't really feel a need to play more than once, since I saw everything there was to see and the gameplay didn't keep me interested. Some improvements could be a procedural map, a time limit for the run, more obstacles in your way, etc. Improvements to visuals and audio as well as effects and such can also go a long way to make the game more engaging. Of course, these things are difficult to implement in the time of a jam, and having a finished product is impressive in its own right!
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Hi, thank you for your feedbacks!
It's funny, because the time limit was planned but I didn't implement it (it will be implemented for the 0.0.3 release).
Procedurally-generated levels are also on the way to the 0.0.3! \o/
(The goal platforms were already random though).
I hope you'll enjoy the game more and more as it grows! =D