Nickelodeon: Aaahh!!! Real Monsters

In this game, based on popular Nickelodeon comics, you control three monsters:
Ickis, Oblina, and Krumm. The Gromble, a headmaster in monster school, needs
you to perform the final test – monster Midterm Exam – in order to prove
yourselves to be _real_ monsters. You should collect trash, throw it on
people, and scare them!

This is a platform game, where you control three characters. Each one of them
has a special move that is often used to solve puzzles and overcome obstacles:
Ickis can fly for a short time, Oblina can reach high ledges, and Krumm can
scan off-screen areas. They can also collect monster books, that will teach
them to scare people. Help the three monsters to graduate!