Rules of Nature debuted in 2013 as a vocal boss theme for Metal Gear Rising Revengeance, composed by Jamie Christopherson with vocals by Jason Miller. It plays during the Metal Gear RAY fight and became famous for its over-the-top lyrics about natural selection. Clips spread through gaming montages, AMVs and YouTube edits, then exploded on TikTok and meme pages as shorthand for unstoppable force. It endures because the chorus is instantly recognizable and makes any comeback feel cinematic.