A young boy, known as the Bitmap Kid, has a pair of magic pants that
contain pockets with an infinite amount of storage space, and therefore
he stores all of his toys in his pockets. One day the creatures who
live in his pockets decide to keep his toys for themselves and play
with them, so the Bitmap Kid must go on a journey to retrieve his toys
from the creatures.

The game is a platform game with standard abilities of walking, jumping, and
hurling items to defeat foes. There are four areas in the game; Cave, Jungle,
River and Mountain areas, each of which is split into several stages including a
bonus stage where the Bitmap Kid must outdo the creatures depending on
what toy is to be retrieved - for example, the Bike is found in the
Cave area, and so the bonus stage is a bike race against the creatures.