Thanks for the playing and for the review.
1º - If a block is not yet placed on the ground and you touch it, you will die.
2º - I will change the background on the next update.
3º - I'm gonna take a look at the jumping mechanics, but I don't really want to be changing it much because the jam is over and I want the game to be evaluated for what it was when the competition ended.
Again, thank's for the review, this is the best one so far.