"A lone bit of cloud with probably some mysterious secret to hide, but you're not interested in that, are you?"- Description of Cloudy Peaks
In the first stage, you climb a huge mountains with Floating Flowers and clouds surrounding it, as you progress further, the surface turn into clouds.
At stage 2, rainbow start appearing in the sky and at stage 3, the rainbow disapeared and the sky start raining as teh cloud turn gray.
At stage 4, it started to get stormier and lightning lighted the sky as you approach the boss.