The game's plot is of a child who is given a temporary ability to change between states of solid, liquid, or gas coming in the forms of a cannonball, a rubber ball, a water droplet, and a cloud.

There are also hazards for each of the forms you change into: the rubber ball will deflate when it touches spikes, the rubber ball will burn when exposed to fire, the water drop will sink when in liquid, and the cloud can be sucked in by fans.

Once you have found all 36 cogs the uncle can fix the machine and Morph can change back to his normal form, a boy.

It is designed and written on Amiga and ST for Flair Software by Peter Johnson with graphics by Phil Nixon and others.

Flair created a PC conversion and licensed the game to Millennium Interactive to enable console versions for MegaDrive and SNES to also be released.