Well, thanks a lot for the feedback! Regarding some of your criticism... Yeah, initially I was going to add more stuff, like some background music and a more refined level design. However, I managed the time very badly, and towards the end of the jam I was forced to rush the game, and I wasn't able to implement a lot of features...
Just to say: I submitted the game 10 minutes before the deadline, and I rushed the game page so badly that I even forgot to describe some of the game features, including the ablities you gain when you choose to lose control! I'm really TOO disorganized!
By the way... Thanks again for your feedback, it helped me to recognize my strengths and, above all, where I should improve. I understand my mistakes, and I will try to improve myself more and more!