Lambo Is the Guardian of Lightning for Tsuna's Vongola Family. He originally came from the Bovino fFamily on a order to kill Reborn.
5 Year Old Lambo (left) 15 Year Old Lambo (right)
Lambo is A 5 year old member of the "Bovino Family". Lambo originally came to Japan to assassinate Reborn, to prove that he was a valid candidate to succeed The Bovino Godfather. Lambo's attempts to kill Reborn have always resulted in failure, and over the course of his failed attacks he has come to befriend Tsuna and the rest of the Sawada family, eventually coming to live in their house, and even going so far as To consider Tsuna's mom a surrogate mother. His favorite weapon to use is the Ten Year Bazooka, a weapon that causes whoever it hits to swap places with themselves ten years in the future, which he usually uses on himself to bring his stronger future self into a battle, however his future self is rather lazy so nothing usually happens when he comes back.
The Guardian of Lightning
When the Varia challenge Tsuna and his family for the right to become next in line for the Vongola Family, Lambo is chosen to be the Guardian of Lightning for Tsuna's family, meaning he'll have to battle for the other half of the ring that marks his rank. The night before the battle Tsuna finds the ten years older Lambo in his kitchen. Tsuna tells him that if Lambo even exist ten years in the future then that must be proof that he wins the match, but Lambo tells him that this isn't true, that he could just be a Lambo from a parallel future, not the actual one for this reality, which would make sense seeing as how he doesn't remember the Varia battle. But he also tells him that it is more likely that tomorrow Lambo will use the ten year bazooka to bring him into the battle, meaning that he could very likely die in the match and the young Lambo would never know and return safely. Because of this he begs Tsuna to not let the younger Lambo use the Ten Year Bazooka on himself in the fight tomorrow.
25 Year Old Lambo jumps onto the scene with a bang
The next day Lambo faced off against Leviathan on the roof of the school. Leviathan shocked Lambo with a string of electric blast, but Reborn told Tsuna this was nothing to worry about because Lambo was struck by lightning several times as a child, making him immune to it. However he still becomes upset with this and uses the Ten Year Bazooka on himself even though Tsuna ask him not to. When the 15 Year Old Lambo arrives he says he isn't surprised and that this was to be expected. He tries to fight Leviathan but he discovers that he is still no match for him. After being shocked several times his calm cool demeanor disappears and the crybaby Lambo of his childhood comes out again and the 15 Year Old Lambo grabs the Ten Year Bazooka and blast himself again, causing a 25 Year Old Adult Lambo to arrive. This Lambo is far stronger than any of the fighters there and is able to fight Leviathan with ease. However the effects of the Bazooka wear off before he can deliver the final strike, and 5 Year Old Lambo comes back. Leviathan is about to kill him when Tsuna jumps in to stop the battle, which gets himself disqualified.
Lambo is the typical toddler. He is very selfish, often crying or throwing tantrums when He doesn't get his way. He likes to be the center of attention, and will Often Become Rather destructive, To the point of throwing Live hand grenades in order to Get Somebody To pay attention To Him. When Lambo Get's scared or upset, He will Often use the 10 year bazooka in order to transform Into the 15 year old version Of himself. This Lambo Is seen as more Competent Then His younger side. 15 year old Lambo Is much quieter, with a relaxed aura around him However He will still make corny jokes and Is easily scared if put into A Situation That can Threaten His Live. When He is put into Such situations, He can Use the 10 Year bazooka once more, To transform Into The "adult" Version of himself. The Adult Version of Lambo, is By far the most powerful Version of the character. He Has an absolute confidence in His Own Power, To The point that it can be considered arrogance. He Is extremely lazy, as He will Avoid dodging attacks, Just because he doesn't want to exert himself.
Ten Year Bazooka- The Bavino family specialty, Lambo Will take out a bazooka And Jump Inside, Resulting in a version of himself 10 years older appearing. The effects only last 5 minutes from the first shot of the gun.
Elettrico Cuoio - Lambo's body has been hit by electricity so many times that he has grown Immune to it.
Thunder Set - Lambo Stores electricity in his horns, and charges the opponent. In order for the technique to work lambo's horns must make contact with The Enemy.
Elettrico Cornata- an improved version of the thunder set, Lambo Launches The Electricity stored in his horns at his opponents in a thunderbolt like Blast.