I really like this! The sounds are freaking awesome, they're really juicy. And I like how you have to die to progress, but you have to do it really strategically so you don't die from the stuff you place or don't block yourself in.
Although I have blocked myself in too many times, it's pretty much the only reason I couldn't get far. Maybe it'd be cool if your remains could sometimes spawn a bomb which removes some of the blocks.
Really cool concept though, good job!