Bomberlamb

This achievement is only available while playing Golden Playhouse mode. It unlocks by involving 15 blocks at once in an explosion from a Bomb Block.

This can be done on level 6-2 on Normal difficulty. Soon after the first checkpoint is reached, you'll run into a tower (about 4-5) of spring blocks. Move one over to be able to spring onto the top of the main wall you need to climb. On top of the wall there will be a bomb block. Light it, and then wait for it to explode. Under one of the newly made crumble blocks, you'll notice a superchared bomb block (one with higher explosion radius). destroy the crumble block and fall onto this bomb block. Let it explode and "Boom" more than 15 blocks should explode.