This is really good!
It's a physics based game that tightly adheres to the theme and has genuinely enjoyable levels to figure out and play, so that's great design, as well.
The idea has certainly been thought of before, such as games where you draw a single line so as to accomplish a given objective on a map, but this one is done with a bomb.
It's fast and short enough that one can figure out the rules for the objects and physics well enough themselves even when they don't get overtly explained by the images.