A Boy and His Blob: Trouble on Blobolonia is a side-scrolling puzzle-solving adventure in which you and your friend Blob (full name Blobert) travel together on earth and on Blobert's home planet Blobolonia in a quest to defeat the evil emperor. Blobert can change into several different items when he is fed jelly beans. A licorice jelly bean, for instance, will change Blobert into a ladder, while a honey jelly bean will turn him into a hummingbird. Most of these transformations can be remembered mnemonically due to a correlation between the flavor of the jelly bean and the item that results.