This is a brand new add-on called Minecraft Pocket Edition: Nuclear TNT Add-On. This new add-on makes it possible to create a Nuclear TNT bomb and make it explode. But watch out: The explosion is really big. Enjoy playing!
Minecraft Pocket Edition: Nuclear TNT Add-On Showcase:
1. Download Nuclear TNT Add-On here!
2. Activate the packs for a world in-game
3. Have fun!