This Creeper has a lit piece of TNT over it's head. If the head is hit and the player is lucky, the TNT might pop off as an Item. If the creeper dies, the TNT will be dropped. The player has a few seconds before the TNT ignites, and can destroy the TNT before it's too late. If the Creeper explodes, it will not do terrain damage, but the TNT will be launched into the air and ignite aswell. Relitivly short command for a lot of stuff ;P