FNAF: Ultimate Custom Night Online is a survival horror game in which you will play like a newly hired security guard working the night shift at a creepy restaurant. Select the challenge you want and hop into a fierce match against animatronics from Five Nights at Freddy’s: Sister Location. To conquer the ultimate FNAF Mashup unblocked, remember to prevent these machines from getting close to you or you will be killed. Do not ignore free items around! They are helpful to stop monsters. Much fun!
Instructions: Use the left mouse button to choose items, WAD to close doors