TNT does little damage to the environment when lit in creative mode. Player placed blocks recive no damage at all. Player can also be launched by tnt (normal) however player is launched a ludicrous distance landing across the map or even outside the world border. When player stands on top of tnt and lights is, player is launched so high they are put in the void (not normal). Attempted to "fall" for several minutes never reached the ground. Closed and reloaded world. Spawned back in the void area I just left.