Fly'n is a puzzle platformer developed and published by Ankama Games, released in November of 2012 for the PC. Gameplay consists of using the four characters different abilities to navigate and puzzle through the environment.
Dyer, the cosmic garbageman, has decided to steal the sap, the Helys, from the World-Trees. The World-Trees are fading due to the filth left behind by Dyer and his cohorts. In a last ditch effort to save Helycia the World-Trees created the Buds using their roots. Fly'n and the other Buds must combine their powers to seek out the Helys and return them to Helyica's branches in order to stop Dyer's evil plans.