In the game, we play the title dinosaur named Mayhem. Monterland is the land in which our hero lives. One day, the dinosaur Theo Saurus - a student of magic wanting to practice new spells - swallowed something and cast a spell on Monterland. From now on this place has turned into a very gloomy place. Our hero, wanting to restore happiness in Monterland - he decided to act and together with Theo Saurus embarks on a journey to save the world.

The game contains five levels. Everyone begins in a climate of sadness. Your task is to collect enough magical pollen and then find the cave Theo and give it to him so he can restore happiness at a given level.