Michelangelo

Michelangelo is one of the main characters in Teenage Mutant Ninja Turtles: City in Shambles.

Personality
Michelangelo, much like his previous versions, is very much a wise-guy, a jokester, and loves to make his friends and family laugh. His jokes are rather inappropriate, as he is a teenage boy at the end of the day, and constantly gets either yelled at or slapped on the back of the head by Splinter.

He is easily the friendliest and most outwardly caring out of his brothers. Michelangelo is always the first to introduce himself to new people/mutants, often greeting them with a bright smile and a fist bump. Despite this, Mikey is pretty sensitive to how people view him and what their opinions are of him, and will often go to extreme lengths to please others.

Accessories
Unlike the rest of his brothers, Mikey is the only turtle who wears clothes. He has on a tattered, orange tank top with a large "84" printed in the middle.

Around his neck, Mikey wears a pair of bright orange Beats headphones, which he'd found broken in the trash. Luckily for him, Don was able to restore them.

On his head sits a backwards Yankees baseball cap, also found in the trash. Michelangelo is in no way interested in sports; he simply got the hat because it "looked cool".

On his left wrist he wears a beaded bracelet with one large, orange "M". And finally, on his knuckles he has two different sets of tattoos; on his left knuckles is "LOL", and on his right is "POW". On his upper left bicep, he has a tattoo of a smiley face with a small broken heart next to it. He also has a lip piercing on his upper right lip.

Physical
Michelangelo is the third tallest out of his brothers, and is also the third-most muscular. He has numerous freckles all over his face, arms, neck, and legs, all varying in different shades of light green. Mikey's eyes are an icy blue, and there are dark red markings around them, signifying that he's a red-eared slider.

Splinter
Mikey never fails to show or tell his father that he loves him, even as a hatchling. He loves hearing stories from Splinter as well -although the old man won't reveal his origins to his sons yet- and always has a million and one questions about Splinter's childhood. Splinter does, however, find himself annoyed when Mikey gets lazy with his training.

Leonardo
As hatchlings, Leo and Mikey got along pretty well and loved playing video games together. However, when Leo gets older and takes over the position of leader from Raph, Leo distances himself from his brothers and becomes a lone-wolf. Mikey doesn't quite understand this and is pretty hurt, constantly worrying that it was his fault that Leo doesn't hang out very much anymore.

Raphael
Mikey basically lives to annoy Raph, simply because he knows exactly what makes his older brother the most pissed. Of course, it's all in good fun and the two forgive each other at the end of the day for all of the teasing and hitting that goes on. When they're playing any sort of video games, Mikey always has Don look up a cheat/hack so he has the upper hand over Raph, and gets a good laugh when Raph gets pissy and smashes controllers.

Donatello
Mikey and Don are each others BBFF's (or Brother Best Friends Forever), and have been that way since childhood. Mikey always goes to his older brother for advice, or just simply to rant, and he's the first one Don goes to when he makes a new invention or discovery. They are the closest of the brothers and would quite literally take a bullet for one another.

As kids, Mikey would have some pretty bad nightmares and he'd constantly find himself wandering into Donnie's room in search of a comforting, safe body. Don would never turn his baby brother away and let him curl up next to him while Don worked on the computer, lending an ear to Mikey if he felt the need to explain his nightmare, or on other nights, Donnie would sing to Mike in order to soothe his anxieties.

April O'Neil
Mikey and April's first meeting was...rough to say the least. After the Turtles saved April from being mutated by the Purple Dragons, Mikey was the first to introduce himself and might've forgotten that his appearance isn't exactly "normal" to humans. She was incredibly spooked at first, as one would be, and gave the poor guy a right hook to the face. However, they've come a long way since then.

Although Mike and April aren't as close as April is with Don, they still have a good relationship and Mike looks at April like an older sister-figure. In his down time, Mikey likes playing with April's hair and doing her nails, which he's surprisingly good at.

Casey Jones
Casey and Mike share some interests, namely annoying Raph to no end. They enjoy talking and laughing together, and also share a love of horror movies and heavily buttered popcorn.

Mona Lisa
Funnily enough, Mona reminds Mike of Raph, specifically in personality. He certainly isn't blind to the way Raph looks at the salamander, and constantly teases them by asking when they're gonna start dating already, effectively earning himself a few good punches in the shoulder.

Pigeon Pete
Mike thinks Pete is hilarious and loves his high energy and positive vibes.

Mondo Gecko
Mikey and Mondo's friendship is very special. The moment they met, they connected instantly and have been best friends ever since. Mikey is constantly seen near or around Mondo, and Mikey enjoys fighting alongside Mondo whenever they go on missions together. They always crack jokes together, create new pizzas together, and even go on long, middle-of-the-night walks together when the time allows it.

LeatherHead
Mikey is the only living being Leather fully trusts. He's had an incredibly rough life and is prone to flip-outs when reminded of his past, but Mike isn't (or pretends not to be) scarred of the alligator. He instead just treats him nicely and respects his space, which is honestly all Leather's ever wanted.

Slash
Slash is one of the few people that Mikey feels tense around, and is very careful about what he says around Slash, as the snapping turtle thinks Mikey's jokes are awful.

Alopex
Mikey likes to make Alopex laugh and finds it funny how despite her trying to not laugh at his jokes, she ends up cracking a small smile in defeat.

Trivia

 * The "84" on his sweatshirts is indeed an Easter egg; 1984 is the year the comics first debuted