In the new dimension you can find explosive gas which explodes when you place or destroy a block next to it, and a new structure which is a trap, it has a preasure plate which explodes if you step on it.
You can make Bottle with hot air by smelting bottle in furnace, when you click with it, it will let out air.
Dynamite explodes when you click on it, you can increase explosion power by placing tnt on top or at the bottom of dynamite.