A new ransomware called RensenWare was discovered today by MalwareHunterTeam that makes a unique ransom demand; score over 0.2 billion in the LUNATIC level of TH12 ~ Undefined Fantastic Object or kiss your files goodbye! The developer reached out to BleepingComputer to tell us that the program was meant to be a joke. They also released a tool that would force TH12 to get the score needed to decrypt the files. Ransomware does not save the decryption key unless you beat this score and if you shut the process down, the key is lost forever.
Source: https://www.bleepingcomputer.com/news/security/rensenware-will-only-decrypt-files-if-victim-scores-2-billion-in-th12-game/