Unicorn!

---

I have many personalities
Some if not all people see me as insane or without a fuse
I love the great unknown madness

Harley quinn?? or colette??
EDIT: well I don't know...

---

I am really good at "what's in that spoiler"
my profile picture is from an cartoon?? maybe
aaaand, i don't know what else

Can be anyone! Any person lol

---

You can call me hero
Just like any other I help society
My enemies are restless

Saitama from One Punch Man?

---

I'm Round
I'm well-known across the globe
I have quite simplistic attributes.

Kirby

---

You can say I have an evil side
I'm like a lone wolf but I have at least 1 or 2 friends
I'm part of the cartoon art world
Mickey could be my friend

Bendy! from the game bendy and the ink machine!

---

i am very simple to play,
i was the first videogame ever invented (that ruins every thing)
and my name beguines by the letter "p" (that ruins every thing too)

Pong

---

I'm magical
Call me a princess or a queen
Do you remember me? I'm from an antique era

sailor moon (tell me if im wrong pls)

---

i am the unluckiest ever
I am blue
i look like an egg
i am from an cartoon

Doraemon possibly

---

I'm like one in a million
My journey had good and bad times
I find the better side on mostly if not everyone