Double Helix continues to swap the Killer Instinct free fighter with newly added Thunder (via PlayXBLA) in place of Sabrewulf.
Jago launched as the free character alongside Killer Instinct and Double Helix benched him in favor of Sabrewulf in the latest update. The update brought new opening moves to each character as well as changes to the matchmaking ranked system.
In an upcoming update, Spinal makes his debut as the seventh Killer Instinct fighter. Last week Double Helix released three new screenshots to show off the new skeleton warrior.
If players want access to the full roster of available characters, Killer Instinct retails for $19.99 on the Xbox One Marketplace.