Mr Handy can only be gained in two ways: at random from a Lunchbox, or via directly purchasing either one or a group of five via the in-game shop - at the point of writing, he costs £0.79 in the UK or $0.99 in the US. How to unlock Mr Handy in Fallout Shelter Individually dragging and dropping your guard Dwellers - or assigning them weapons and outfits - can get rather clumsy when your population increases, so it makes a huge difference having a Mr Handy there on-hand (sorry, again - that's the last one). He also makes a significant difference to your counter-Disaster measures, by providing an instant response anywhere on his floor. If you have enough of them, entire resource incomes can be left alone whilst you deal with the more management-intensive duties like breeding new Dwellers, training them and checking up on those in the Wasteland. The thing that makes Mr Handy so special is the automation.
Watch on YouTube What is Mr Handy in Fallout Shelter and how does he work?