Tororo

Tororo is the hacker of the Garuru Platoon who thinks hes better than everyone else. He is a red Keronian tadpole that bears a striking resemblance to baby Kururu and his symbol is a circle with three bumps. He hacked into the Keroro Platoons systems during the Garuru Platoons invasion. Kururu faced him but was for the first time in his unsettling existence stumped Tororo was one problem Kururu could not fix. Keroro gave his soldiers a pep talk Dororo threw an energy shuriken into Garuru Platoons base freeing Paul Momoka Koyuki and Mutsumi and Kururu hacked Tororos base making all his mechas which were originally sent to attack Keroro Platoons base attack Tororos base. With his glasses and ship destroyed a computer falls on Tororos face and he is knocked out while Kururu announces that he has Gotten rid of the annoying thing. During the encounter with the Keroro Platoon Double he mistakens Kururu Double for the real Kururu and driven by anger and the thirst of revenge Tororo wipes out Kururu Double along with the rest of the Keroro Platoon Double and almost the Garuru Platoon. Source Wikipedia