now that lockjaw was recently discovered,I decided to put my winning strat for true nightmare mode,since you need to beat it again and again to unlock him

1-Follow a pattern of cams that you shut off (example:start with cam 10,then go to 5,6,2,7,3,etc)

2-dont shut off the cam when donald is in your room unless other character comes in

3-when someone enters your room,wait for 3 seconds before shutting off the cams,that way others characters can enters your room while you wait,conserving cams

4-keep most of the time with the lights off

5-if everyone decides to show up at once,deal with the cam character's,then stand still and turn the lights off

Note:you can also try to make mortimer show up,he yeets everyone temporarily

good luck trying to unlock lockjaw