Click around to spawn tnt which destroys the blocks. Use the slider to change the explosive power, and click restore to respawn all the blocks. Anything higher than 10 for the explosion power slider is really just to look at the particles. (Update:) Blocks have durability now (Update:) Destroyed blocks shoot particles now (Don't try with high high explosion power.)
Tried it with stamping, but it didn't work. :P I wish I knew how to, so I could make a game like @Coltroc's miner cat.
