Combines several elements into a neat game.
I enjoyed Smart Bomb quite a bit.
IMHO it did a good job of combining problem-solving puzzles, reflex testing action, and exploration.
My only suggestions to the creators would be:
1) More levels! I felt things were just getting interesting when I got to the end.
2) More unusual challenges. Although maneuvering was quite a challenge in some cases there were few other instances of unique obstacles to be overcome in achieving the objectives on a board.
3) After playing Soap Bubble II (also on Newgrounds) I've been somewhat intrigued with the idea of a story or plotline gradually being revealed simply by the background in a given exploration/puzzle game. While not necessary to my enjoyment of the game I think such elements could be put to good use in any future Smart Bomb type games.
Think that about covers it.