Modders must know something the rest of us don’t. Or, they just like scaring themselves with memories of childhood. In any case, a user by the name of Katalash has created a mod that replaces the Great Snake boss in Sekiro: Shadows Die Twice with Thomas The Tank Engine.

Yes, as he was in Monster Hunter World and Resident Evil 2, Thomas is back to terrify you.

While the iconic theme song isn’t included in the mod, we do get Thomas’s whistle, which will blow just before he attacks. There’s also no replacement animation. Meaning, Thomas will jerk and twist in humourous (and horrifying) ways.

To get this mod working, you’ll have to grab the Sekiro Mod Engine. From there, it’s a simple matter of following the instructions.

No word on if we’ll see Sekiro in a speedo, or some weird stuff like that.