Nice concept! I like how it's a lot more different than other games in this jam! The graphics and music were also good. Rewinding the bombs sometimes felt a bit weird, and a little unresponsive at times. It might be good to have the bomb rewind, but have it so it doesn't move forward again (the bomb stops in place after rewinding). I think it would make the game a bit cleaner, but I'm not sure if any levels would break.
Anyway, great job and entry! If you want, could you rate my game? A rating would be appreciated!