From GameWatcher: “Psychonauts 2 isnt necessarily longer than the original we spent some 14 hours beating the main story, with plenty of collectibles left to discover but its bigger and better in just about every way imaginable. Its also more considerate and discusses mental health with more empathy than its predecessor did, but never at a detriment to its puntastic dialogue and humor.”
Source: N4G PC Psychonauts 2 Review – GameWatcher