Crash Twinsanity - Classroom Chaos & Rooftop Rampage (with Madame Amberly Boss)

Crash Twinsanity Classroom Chaos, Rooftop Rampage and the Madame Amberly Boss in one video.
Classroom Chaos description: It is the only stage where Cortex goes solo for part of the level. It continues on from Boiler Room Doom. The level is very easy for collecting Gems, as they are all pretty much on the main path. Next to Ant Agony and Totem Hokum, it is considered one of the longest levels in the game. The level starts off as Crash. The player must make their way through several corridors and classrooms and at one point outside where three Guard Dogs await. In certain corridors, there are Hall Monitors which Crash has to hide from, similarly to the Tribesmen in Totem Hokum, looking out for intruders. Eventually, Crash makes it to a library that is filling up fast with green acid, possibly from the underground boiler room. Crash has to make it to the top before he is killed by it.
There is a Discord Server for Classroom Chaos.
Rooftop Rampage description: The level serves as a tutorial for using Nina's character and shows Cortex the skills that Nina has learned during her time in the Academy of Evil. The level takes place mostly on the night-time rooftops of the academy, though Nina will occasionally enter small portions of the school. She must use the school's gargoyles to traverse as she can grapple onto them with her bionic hand. The roofs are festered with rats and ants who will try and stop Nina's progress as well. Inside the school, the academy's Zombots will also attack the player. Some of the school's chimneys are unstable and will collapse under Nina's weight. Additionally, she must spin through bells when she comes upon them to pass.

Eventually, Nina will be followed by the airship, since Crash anchored it to a school bus which wasn't heavy enough to weigh it down.. This bus ends up becoming a hazard for Nina, as it dangles from the airship and destroys the bridge she is walking on from behind. After getting out of the bus's way, Nina will meet up with Cortex, who sends her back to the airship.