The evil tyrant Greedy has arisen to control a solar system full of sentient beings. He has corrupted the leaders of each world and thereby enslaved the entire populace. He has also sent his minions in the disguise of planet natives into the worlds to enforce his rule.
A lush forest planet, the last planet in the tyrants agenda manages to send a call of help to the solar systems little ancient hero before being over run. However, Greedy has even managed to remove the great hero. Yet, he did not count on the interference of the hero's sun, Ristar.
The player takes control of Ristar in his attempt to liberate the solar system. Ristar can stretch out his arms to grab enemies and summarily headbutt them. His long limbs can also be used to climb up on various surfaces. Being a star adds more features to the gameplay.