When you use a handheld gaming system and then press escape and then enter, the game robotfindskitten starts, but you can’t do anything in it. You can’t even quit, except by closing the whole game, possibly losing the whole game if not saved. This is in version 0-A.
https://github.com/CleverRaven/Cataclysm-DDA/pull/6423 this should fix it. Thanks for reporting bugsniper.