Explosive Blocks are a platforming challenge in Shovel Knight found primarily in the Lost City. Striking an explosive block with a weapon or blowing it up with bombs, will cause it to explode, triggering any other nearby explosive blocks in a chain reaction. There is no way to stop such a chain reaction, but depending on the direction, The protagonist can outrun it. Explosive blocks are often positioned over lava, which the protagonist will fall into if the block he's standing on explodes. Further complicating matters, enemies are often placed on or near explosive blocks where an errant swipe of the shovel could set off an unwanted chain reaction.