Here is a robot that can operate in areas with flammable gases after a disaster. The Sakura No. 2 has cameras, tread belts and an antenna, allowing humans to inspect dangerous areas without putting any life in danger. The robot can operate for up to 2.5 hours on battery.
The Sakura No. 2 is more than capable of getting around obstacles and climbing over things for inspection tasks. The Japan Times has more on this unit.