I am looking for an anime that...

[ultraChalk]

Is in the action genre.
Fighting with good choreography, that is understandable.
Has a MC that is an adult male, or mature at the very least.
Has strong family values. Is a older brother, father, or something. I'd like for him to have something to protect.
Has forms (not mandatory but would be a plus).

If you don't know one that matches all these requests then just tell me one that matches the most.

And another anime that...
consists of the action genre, where the fighting style revolves around animals, if that makes sense. like for example a character that fights using a lion style and another that fights using a snake style or something, maybe even animal transformations.

 

[Venomous Cobra]

Code geass, the main character is mature and has rich family, also he protects his younger sister as for the fights, it's robots but it has alot of strategy abd epic plot and one of the best if not the best anime ending I totally recommend it

 

[Ultimate Beast]

Gintama fits everything except I guess you wouldnt consider Gin mature but he is about 23-25 years old.

 

[TheAncientJinchuuriki]

Parasyte The Maxim. Old manga which ended in the 90's, but recently got an anime for it. Currently has 6 episodes.

The main character matures in a very short time, and now is left to protect his father from suffering the same fate his mother did. His right arm becomes a home for a parasyte

 

[Legend Slayer]

You just described bleach

 

[Varial]

Rurouni Kenshin

 

[roncato]

Fate/zero .

 

[kamui14]

Gintama definitaly

 

[Genrou]

Fullmetal Alchemist: Brotherhood
Darker than Black

 

[Punk Hazard]

Full Metal Alchemist and FMA: Brotherhood from what I can tell.

 

[-immortal-]

What the above say.

Full metal Brotherhood is a go go although he is not adult.

 

[Atalaya]

Parasyte The Maxim. Old manga which ended in the 90's, but recently got an anime for it. Currently has 6 episodes.

The main character matures in a very short time, and now is left to protect his father from suffering the same fate his mother did. His right arm becomes a home for a parasyte

Yeah watch Parasyte, there's also a rl movie coming out too. U_U

 

[Hexuze]

I would recommend HxH... But the MC is too young.

 

[JackelLord]

FMA: Brotherhood is the only one I can think of with your requirements.

 

[~Puppet Master~]

Darker than Black has an adult male for a MC
He's searching for his lost little sister.
The fighting is realistic and modern, but people do have superpowers.
No forms.

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[Xlad]

Darker than Black fits the bill.

 

[LitzSabr]

Is in the action genre.
Fighting with good choreography, that is understandable.
Has a MC that is an adult male, or mature at the very least.
Has strong family values. Is a older brother, father, or something. I'd like for him to have something to protect.
Has forms (not mandatory but would be a plus).

If you don't know one that matches all these requests then just tell me one that matches the most.

And another anime that...
consists of the action genre, where the fighting style revolves around animals, if that makes sense. like for example a character that fights using a lion style and another that fights using a snake style or something, maybe even animal transformations.

Some are already recommended above.

Fate/Zero
>Action genre and much more.
>One of the best animated anime.
>MC is adult male, a cold blooded killer.(can't say totally mature since his ideals aren't what an adult would have, no matter what the intentions).
>Has a daughter and wife(Loves them more than anyone but that itself is a painful thing to him. Protect the loved ones or prefer others over them? His ideal forces him to make a choice. An interesting thing to see)
>No other forms(If you're talking about power ups). Though he does have supernatural abilities.


Full Metal Alchemist Brotherhood
>Action genre. Have some characters who can transform into beasts.
>Good animation(especially the later parts).
>MC isn't adult, acts mostly like a brat but sure is good at making decisions when the time demands.
>Real strong family values. Went to extreme lengths for the sake of his mother and brother.
>No forms but have supernatural abilities.

 

[Torche]

A few:
Bleach.
Code Geass.
Fullmetal Alchemist: Brotherhood.

Some that don't really fit the bill, but are still excellent and somewhat do:
Hellsing Ultimate.
Psycho-Pass.
Death Note.

 

[Baki of the sand]

It doesn't really 100% fit the criteria but if you like a good action with a lot of weapons, give Jormungand a go

 

[ultraChalk]

Thank you all for your suggestions.

I'm trying out Darker than Black, Bleach, CG, and MAYBE Fate/Zero. Art style wasn't me, and seemed kind of boring chapter 1... good thing there's only 6.