A Mortal Kombat X modder has had a dig around the PC version's files and made currently unplayable characters playable.
Modder XVermillion published a couple of videos to YouTube, embedded below, showing Rain, Baraka and Sindel in training mode.
You fight these characters during MKX's story, but they are not playable characters - yet. Perhaps they'll be sold as downloadable content at some point in the future.
XVermillion explained his working out in a post on Reddit. Essentially, he tweaked playable character Shinnok to use non-playable character models and movesets.
Will you support Eurogamer?
We want to make Eurogamer better, and that means better for our readers - not for algorithms. You can help! Become a supporter of Eurogamer and you can view the site completely ad-free, as well as gaining exclusive access to articles, podcasts and conversations that will bring you closer to the team, the stories, and the games we all love. Subscriptions start at £3.99 / $4.99 per month.