Rabbit Escape is free on the Play store: https://play.google.com/store/apps/details?id=net.artificialworlds.rabbitescapefree and F-Droid: https://f-droid.org/en/packages/net.artificialworlds.rabbitescape/

It's also free for your PC: https://www.artificialworlds.net/rabbit-escape/

Music: "Carefree" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/