Good job on this one! The graphics are simple but get the job done, and the gameplay was pretty fun :) Nice logo too!
Only thing is from the start the player cannot block more than one enemy bullet at once, especially if they're coming from very different directions. Maybe a little warning for each enemy before it shoots, so the player knows to quickly block the bullet. You could also come up with different ways of balancing the difficulty. However, considering the little amount of damage dealt by each bullet, that didn't stop me from having a good time!
Overall good job :) Keep it up!