Controls well enough. Art style is clear and pleasant :) The force-field/barrier fizzle effect looks nice.
I got stuck a few minutes in, as I was blocked by two solid barriers. Couldn't figure out how to get the key which is shown in the third screenshot.
It wasn't clear that I had to shoot some blocks, but figured it out. Maybe I needed to shoot more blocks to get that key...
What might have been nice is some effects like small explosions when the bullets/projectiles hit a wall :)