First of all, I'd like to thank you guys for the attention and suggestions. I'm keeping note of all problems that are being reported and working on it.
About the power-up sugestion, don't worry, that is a feature already planned to be in the game. The little Tiny will be able to defend itself and the eggs from its enemies pretty soon!
One of my greatest challenges is to add features within the 100 event limit that the free license grants me. I'll try to implement at least an level selection hud, and a way to keep recorded the hi-score of every stage. One of my desires with the game is to bring two feelings: The satisfaction of beating your previous scores, and the desire of complete the stages perfectly.
I just uploaded an updated version of the game. The topic was also updated with the link and the development progression. I revised the enemy behaviors, adjusted Tiny's speed a bit, and now every stage is with the tileset applied.
Once again, thank all of you very much for the attention!