The primary goal of the Journey to Jupiter is for a player to keep as many of their bunnies alive while trying to eliminate the opponents' bunnies (both on the ground and in space). Players must have at least one bunny alive (in space) at the end of the game to win.
The secondary goal of the game is to explore the Solar System by launching bunnies into space in ships. Once in space, the bunnies collect Carrot markers and journey to the planet Jupiter.
A player owns any Carrot that they bring to the planet Jupiter, and at the end of the game when all Carrots have been claimed, the Magic (or winning) Carrot is revealed. The more Carrots a player owns, the better that player's chances will be of owning the Magic Carrot and winning the game.[2]
Killer Bunnies and the Journey to Jupiter reuses some mechanics and play systems of Killer Bunnies and the Quest for the Magic Carrot, such as the method of playing cards being the same, the main changes between the games are the use of boards, ships and the change to the method of collecting carrots.