Great use of the theme of dual purpose design with the bombs being movement options, moving blocks and activating your self destruct, very innovative.
I did have an issue with the bombs being inconsistent and quite had to control as well. Just dropping them in front of me and having them roll away made it difficult to control them the way I want and sometimes they would deal more damage to me and put me into self destruct when I didn't want or expect to.
A nice little theme and some promising ideas, great work!