Sulley’s pink spots appear blue when he is out in sunlight and return to pink when he is indoors or when it’s nighttime. Mike’s training program for Oozma Kappa is similar to the morning training he gives Sulley in the first movie, complete with “Scary Feet” and brooms used as kid dummies.

Are Sully’s polka dots pink or purple?

Character error

Don tells Sullivan that he’s scary even with his pink polka dots. They’re not pink, they’re purple.

Does Sullivan ever see Boo again?

After her door is shredded, Sulley feels sad that he’ll never see Boo again and keeps one of the splintered pieces from her door as a memento. At the end of the film, Mike brings Sulley (now the new CEO of Monsters, Inc.) a surprise, which turns out to be Boo’s door reassembled.

In Monsters Inc, a prominent character is Boo. There is a theory that Boo became Violet from The Incredibles. There is credible evidence for this, exampling: both of them look similar. Also, remember the scene in Monsters Inc where Sully closes the door throwing Boo inside and when Sully turns around, she is outside.