Teeny hero

The teeny hero is the main character in the icon game J-J-Jump.

Trivia

 * The teeny hero is purple.
 * Zapo is also purple.
 * Therefor Teeny hero and Zapo look the same. *plays Illuminati music*

Theories
''"The teeny hero is probably an alien, escaping from a planet that is flooding. However[,] this is only a theory, as its actual intent was never specified." - Nitrome Wiki ''

Teeny hero consumes a multicolored substance called "J-J-Jump juice" (jump juice for short) that is converted into propulsion.

The jump juice could also be flung from the teeny hero's feet downwards which would explain how it could jump midair if enough momentum were to be transferred to the juice.

The jump juice may also simply be oil spilled on the ground that fuels the teeny hero, which would make it a robot if that were the case. The amount of oil everywhere correlates with the climate change themes in the game hence the rapidly rising water levels and heavy rainfall. The ending could be explained away with a "Noah's ark" scenario in this case.