Rooftop Rampage

Rooftop Rampage is the ninth level of Crash Twinsanity and the third of Madame Amberly's Academy of Evil. As the level's name would suggest, the level takes place on the rooftops of the Academy. It is one of the only two areas in the game (the other being the fight against the Evil Twins) in which Nina Cortex is a playable character. The level serves as a tutorial for using Nina's character and shows Doctor Neo Cortex the skills that Nina has learned during her time in the Academy.

This screenshot shows that nina may have been able to jump higher in the level http://www.gamefaqs.com/ps2/920119-crash-twinsanity/images/gs_screen-37