Kid Hero: He's 14 at the beginning and is younger than his father when he started wrestling
Punny Name: Suguru came up with the name due to Ultraman (whom he is a fan of) having a brother named Ultrman Tarou. He then took the name Kinnikuman Tarou and made it Kinniku Mantarou.
Face Heel Turn: In the Ultimate Choujin Tag Arc thanks to Neptuneman's training to make him a Perfect Choujin.
Heel Realization: Thankfully as he saw his parents in the past timeline in the audience and decides to fight as a Seigi Choujin but unfortunately later on, Neptuneman and Mammothman immediately ripped his face off after his loss to Warsman.
The Worf Effect: interestingly, he is actually aware of this, and is actually proud of being defeated because that let's his friends learn the villains abilities firsthand.
You Have Failed Me: Courtesy of Neptuneman and Mammothman in the Ultimate Choujin Tag Arc.
From Nobody to Nightmare: He's the son of Skullduggery, a very eccentric evil doer who's really bad at succeeding, but he's a certified Hero Killer who kills Meat's father, the only villain to drive Meat completely into the Despair Event Horizon and is much of more of sadistic than even members of the Dmp.
Evil Genius: He gave Mantaro a very hard fight and even defeated his Muscle Millenium. He was then defeated by the Incomplete Muscle Gravity.
Expy: Of Pentagon and Black Hole since he is a 4D Choujin himself.
Humanoid Abomination: Due to his nature as a constellation being, he can split himself into two bodies, grow horns, a scorpion tail wings and transform himself into a bear and crab.
Future Badass: He is said to be the one who stopped a wave of Evil Choujin during the time the Seigi Choujin were raising their own children.
Heroic Sacrifice: He saved Neptuneman from falling into Mt. Fuji only to get fatal burned himself and died eventually as he played with his collected Choujin figures.
Big Bad Ensemble: Similar to the Dream Choujin Tag arc, they had an evil alliance with Neptuneman and Mammothman by the semifinals and all four even worked with Satan to take Kinnikuman out!
Finishing Move: Death Watch Branding and Prelude To Justice Crumbling
Hero Killer: They killed Robin Mask in the past which could have got Kevin Mask to not exist but Mantaro and others managed to stop it but Alisa was then the victim instead. They also cut off Brocken Jr.'s arm. They even defeated Neptuneman and Mammothman although the latter abandoned his own partner to be with Kinnikuman Super Phoenix.
Time Travel: As Time Choujin, they can do this after pulling off their Demonic Time Horns.
Driven to Suicide: When Mantaro and Kevin decides to restore him and Thunder using small pieces of the Competition Bulbs which they were after to become more powerful, Thunder took it but Lightning did not because he didn't want to except pity from the Seigi Choujin. He said while Thunder has his own mother to worry about, Lightning says he has no one that will miss him. So, he jumps into the volcanic Mt. Fuji and perishes into ashes.
Dying Alone: He decides this fate since he believes no one will miss him and that at least Thunder has his mother that does.
Healing Factor: He can reverse all the damage he suffered with the same mouthpiece upside down!
Shape Shifter: He can split his body to avoid attacks.
Shapeshifter Weapon: He can turn his legs into minute hands for the Death Watch Branding finishing move.
Villainous Breakdown: When Thunder was taken down by Mantaro and Kevin's NIKU->LAP, he didn't took it very well and even kicks down his own partner for it!
How Much More Can He Take: A lot of Choujin fits this trope, but Thunder stood out. He was thrown into the swords but got back up normally, took a Cross Bomber and lived, accidentally fell victim of his and Lightning's own Death Watch Branding intended for Mantaro and Kevin, then took a NIKU->LAP to finally bring him down, and then somehow... he managed to get back up to stop Mantaro's Muscle Spark from finishing off Lightning! Let's see if Kevin's Big Ben Edge can finally bring him down.
He is finally defeated along with Lightning but not with Big Ben Edge but the Muscle Kingdom!
Instrument of Murder: His Shapeshifter Weapon the Legendary Destruction Bell that mentally attack the Seigi Choujins which reminds of their past battles and pain.
Mother Russia Makes You Strong: They consider themselves the true representatives of USSR than their fluffy counterparts Hell's Bears who they call Misha. It didn't end well for them as their opponents are NOT as fluffy as they seem and it is NOT just because of this trope.
