dororo
Dororo is a blue ninja-like frog alien from the Keroro Platoon, a group of 5 of such aliens from Keroro Gunso, known as Sgt Frog in the US. He was traumatized by cruel treatment by his 'friend' Keroro and breaks down crying when reminded of it, which is refered to as his trauma switch turning on. His gaurdian is a ninja girl.
(Dororo muttering to himself while crying in a corner) "Just like that time..."