Shadow Jake

Five Nights at Shea's 2
Shadow Jake will VERY rarely appear in the office when the cameras are pulled down. To get rid of him, Shea should pull her cameras back up as the puppet mask won't work on him. Otherwise, he'll attack her.

Five Nights at Shea's 3
Shadow Jake activates on Night 4. He appears in the office at random when the cameras are pulled down. He prevents Shea from pulling up her laptop. To get rid of him, Shea must simply hide under the desk. And unlike Jake, she can simply duck under the desk and he'll disappear instantly. Failing or neglecting to do so will make him attack Shea, resulting a game over.

Five Nights at Shea's 5: Halloween Edition
Shadow Jake activates on Night 7. If Shea sees him in her Night Vision Camera, closest to the door on either side, she should run up to the door and hold it shut until she hears Shadow Jake walking away. Failing or neglecting to do so will make him attack Shea, resulting a game over.

Five Nights Before Shea's
Shadow Jake activates on Night 3 (Night 11 in Hard Mode). He'll appear on any random camera pounding on the vent. If he's there, Jake should call the phone in that specific room to make him run off. Failing or neglecting to do so will make him get through the vent, take a few seconds to crawl through, and then attack Jake, resulting a game over.

Nightmare at Shea's
Shadow Jake activates on Night 2. He'll appear at random when the cameras are pulled down. Shutting off the lights won't work on him. Instead, Mitch should pull the cameras up and put them back down. Otherwise, he'll attack him resulting a game over.