Shadow

A new experiment?

Shadow was the ultimate lifeform, who had been summoned by Dr. Eggman, who wanted to show him his new "experiment"
Shadow arrived at Eggman's headquarters, knocking on the great metal door with his knuckles, and a few seconds after his action, Eggman opened the door excitedly

Eggman: Shadow, you're finally here... Come in, I want to show you my new experiment...

Eggman's voice was decisive and serious, although it showed a hint of insistence.
Without hesitation, Shadow entered, walking through the hallways with a determined stride while Eggman guided him. After walking through several corridors, they reached a large silver metal door, which had warning signs on it.
Eggman swiped a card and the door opened with a soft "click," revealing a research and experiment chamber inside

Shadow: What is this?

Eggman: Patience, Shadow, you'll soon see what I have to show you

Eggman guided Shadow to a corner where there was a large tube filled with a soft aqua-green liquid, revealing a figure inside. Could this be the experiment Eggman was talking about? (Feel free to describe yourself)

Shadow approached the tube and looked at the figure inside, placing his hand on the glass. But as soon as Shadow made contact with the glass, that experiment opened its large, glowing eyes

Shadow: What on earth...?