The alarm bells start ringing as soon as you open the map screen and it’s worryingly small, showing barely more than ten bombs which require your expertise to be defused before they blow the world up. The whole world. All of it. Unfortunately, you don’t really have expertise. All you have is the ability to get blown up and then return to the scene five minutes before it happened, whereupon you can have another go at not getting blown up. Kind of like Groundhog Day, then, but with more getting blown up.