A picture of real stafruit.
How Star Fruit appears in Keroro.
Starfruit is a pekoponian fruit that has many nutrients that Keron has. It also has some qualities of keronian medicine. When consumed, Keroro gains a burst of energy. In episode 110-a, starfruit saves Keroro's life when he was extremely sick He does not eat these all the time because of his dream of everything (including Gunpla, Cpt. Geroro, and his friends) turning into starfruit (episode
110-b)
Shin Keroro eating Starfruit.