Far far away, deep inside the rainbow nebula, in the the constellation of marshmallows, lies the peaceful planet of Joyland. Here the Flubkins live a snoozy existence, in permanent friendship with an assortment of talking animals and anthropomorphic objects. That was until the arrival of cosmic psychopath Cyclotron, on a singular mission to annihilate the Flubkin menace or send them to toil in the nightmare dimension. Through the horrors of war, Flubkin society will be turned inside out, as they discover what they are really capable of.
Cyclotron in Joyland is a side-scrolling Metroidvania style shooter which seed the player take on the role of the evil cyclotron as he lays waste to Joyland. Although a walkover at first, as Cyclotron progresses towards the Flubkin Capital the Bouncy Castle, the Flubkins begin to mount an increasingly desperate resistance, tearing down the enchanted forests to build weapons, and drafting an assortment to odd creatures to fight their wars.
As is traditional in Metroidvania style games, new weapons (in the form of various arm attachments) open up new areas and gameplay elements. For instance, on unlocking the Nightmare Dimension arm attachment, Cyclotron can choose to abduct Flubkins and their allies to develop new items and power-ups for him instead of outright killing them and gaining an immediate point bonus.