Yea, I thought of making them faster to keep up with the player, but I thought it might make it to easy. Maybe it I add a way to destroy a Krampus to lower his numbers it could balance it out more.
Sounds like a good idea, or perhaps an obstacle that you can trap a Krampus in, (like a pit or a bear trap) which then has a cooldown after releasing the Krampus again.
That's kind of how the snowman responds. It holds him for about 10 seconds and reduces his speed to stage 1 if he has sped up at all. But I guess a trap hole could do it, then spawn him back at his origin spawn point after like 30 seconds.