Yeah, not only the globe was inspired by Kurzgesagt :)
And we did actually implement a Restart button and some other keybindings (W and Spacebar), however our UI glitched out a bit so that you are only able to use those ones when you succeeded the first level, returned to the main menu and restarted... too bad we discovered it only after we submitted :)
But thank you very much for your bug report and feedback!