Killer Instinct, the free-to-play Xbox One launch title that continued on the legacy of Rare's 1995 original of the same name, continues to be popular towards the end of the current console cycle, despite the wealth of fighting games that have released over the past seven years. Now, a new documentary has emerged, exploring the enduring popularity of the series, and the legacy of the original game.

Fight On: The Killer Instinct Documentary is cut together from over 34 hours of interviews with key personnel involved in the creations of both the original and the new game (including Ken Lobb, the inspiration for GoldenEye 007's Klobb gun), as well as several of the game's biggest players.

The full movie runs for 104 minutes, so make sure you have some spare time before you start it. It's also completely free to watch.