'Birthday Carnival is a Pixar short film based on the all the characters of Monsters University and Monsters, Inc., it will be released with the theatrical release of Inside Out.


While Oozma Kappa prepare to celebrate Mike Wazowski's 21th Birthday but James P. Sullivan suggests a Birthday Carnival that similar to Birthday Party, so they held a Birthday Carnival invited by Other Monsters and this was a surprise for Mike Wazowski.


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