_ No ads.

_ No need for internet.

_ Ability to save and continue easily.

A Boy and His Blob is a puzzle-platform game. The plot involves a young boy and his alien blob friend, Blobert, on a quest to save the latter's home planet of Blobolonia, which has been taken over by an evil emperor who only allows his subjects a diet of sweets.[2][4][5] The boy and Blobert must traverse the subways and caves beneath the Earth and gain the necessary items before traveling to Blobolonia and defeating the emperor. They must evade dangerous obstacles like falling rocks, stalactites, and stalagmites, as well as deadly snake enemies.[4][5] A Boy and His Blob is not a side-scrolling game, but presents the player with a series of interconnected screens.[6] The player-controlled boy is limited to running left or right. The player cannot jump or swim, and if the boy falls too long of a distance, he dies on impact.[6]

Though the player directly controls the boy, Blobert is controlled by the computer AI. The player must rely on the shapeshifting blob to cross gaps, reach higher platforms, and overcome the obstacles and enemies.[2][4][5] Blobert can change into several different tools when the player feeds him flavored jelly beans. A licorice jelly bean, for instance, will change Blobert into a ladder, while an apple jelly bean will turn him into a jack.[2][5] Whistling at Blobert causes him to revert to his original shape and continue following the boy.[4] The player is encouraged to experiment with the jelly beans and their effects to navigate the puzzling game world.[2][4] Scattered throughout Earth's caverns are various treasures and diamonds that increase the player's score and can be used to purchase vitamins at a drugstore located within the game world.[2][4] Vitamins can be used in conjunction with a special "VitaBlaster" gun, which is in turn used on Blobolonia to complete certain tasks.[5] Also found on the map are extra jelly beans and peppermints, which increase the player's lives.