That's a good game! Maybe you could make the difficulty a little bit more gradual and prevent the player from getting off the screen but besides that it was an enjoyable game.
I found that if you manage to get in a corner (at least the lower left one), you could basically shield yourself from any blob. Also, once you have more than 100 it only shows the score as 1. My highscore must be in the 400s ^^.
All of this is very tiny issues, if you fix them you would have a very nice first game! Keep up the good work!