Robot Warlords,[1] known as Velvet File[a] in Japan, is a turn-based tacticalgame created by Nexus Interact. It was first released in Japan in 2000 under the title Velvet File The storyline features mecha fighting in a war against a terrorist organisation; the player can have a team of up to six characters, though only four can be used in a battle. The mecha themselves are state of the art technology that run on batteries, and can be customised with a variety of melee and ranged weapons, allowing for different strategies. The game received a Japan-only re-release, Velvet File Plus[b], which fixed several bugs and added support for the Sony PS2 PrintFan with PopEgg.[2]