The Mushrooms in Sporegus are a single organism, a Hivemind taking over a carcass, as much as it looks like Matthew, the person wasn't a Matthew clone or a Matthew AU, just a random person known as Mark that prepared himself for a date, and he got shot in the left side of his head, leaving a pretty big hole, Sporegus, scared, took shelter in a garbage cart, the one near Ethan's Mansion, one day a maid was taking the trash, and found Sporegus inside, she screamed asking Ethan for help.

Ethan, instead of killing Sporegus, decided to make him his assistant, a Right Hand Man.

Ever since, Ethan took care of Sporegus, and Sporegus took care of Ethan.

Questions & Answers

What are the Mushrooms growing in him?

The Mushrooms are known as Uncanny Sherberts, special fungi that only grow in Retronion, it was a miracle that the batch that took over Mark's Body was even alive on Earth.

Does Sporegus know about The Matticraft Crew/The Dreamchasers?

Sporegus is aware of Matthew's Existence, and infact, is friends with him, just barely talks with him.

How does Sporegus talk anyways?
His entire Nervous system and Organs were overtaken by the fungus, so the Vocal Chords are made of, you guessed it, roots and fungi.

Is the body Sporegus in still alive?

No, the body is dead, however, Sporegus being an alive organism that overtakes the body, makes it as his new body, causing it to not rot.

Is he male?

The Uncanny Sherbert Mushrooms are creatures, having 2 sexes, Male and Female, in this case, Sporegus is Male, and Mark is also male.

Can Sporegus feel emotions?

Like any other Living creature, yes, Sporegus is able to feel emotions, such as Love, Happiness, Anger, Lust, Sadness etc...

Is the computer he's holding The Doctor/Harley Sawyer?

No, the computer with an eye he's holding is not Harley Sawyer, its another character completly different from Sawyer.