Do you fear me?

[Todd]

Okay give me a second...

---

More detail for you:

First off, your basis for this poem is a video game interaction. If this were 15 years ago, this would be like writing a poem to a Mortal Kombat fatality move. Can it be done? Sure. It has to be clever and interesting. It has to have an angle that's worth reading about. This doesn't. It has confusing language choices, a lack of precision, nothing that elevates it from a mild incoherent rant. When I say start over, it is a shorthand way of saying you don't have a good enough idea, a strong enough foundation, or good enough execution to build anything with the raw materials you've assembled.

Here are a few line comments:

Feast upon the shine of my blade!
For I see the fear upon your lonesome eyes.--So, the speaker has unsheathed their blade and the shine makes this person afraid. Lonesome eyes is a weird choice here. It would imply that there's a sexual or romantic connection between the two. Also seeing fear in the eyes is one thing (its cliche but understandable) seeing fear upon the eyes would assume that fear an abstraction has a certain form and that form is expressed upon the retinas. Its sloppy construction.
Besieged and imprisoned with the weakness you hide.--Now you use weakness another abstraction to describe fear. A concise image would be a better choice. You also have two contrasting elements. The person is besieged by these fears. Meaning they are outside of him struggling to get in. He is also imprisoned essentially behind the walls with his fears. You say the weakness is hidden obviously poorly if it is both inside his psyche and outside of it.
But I shall not be fooled!--Again with the exclamation points, I could accept the one earlier. Overusing them though doesn't give the line more impact
I laugh at you, instead.--These last two lines add nothing (bravado, dialogue). It doesn't add anything to the poem.
Therefore, you're a critter.--This is just strange.
A weak, plain, critter.--Here you reemphasize strange again. You also add the modifiers weak and plain, which are themselves weak and plain. Adjectives are no substitute for imagery. Critter is not much different than writing thing.
So you shall die this very second;--Flat dialogue with no evocative phrasing, imagery or language
For my eyes can bare no more.--Do you mean bear (as in endure)? Why do we need to focus on another pair of eyes? This feels like more filler that isn't going anywhere. There's no emotional resonance. As a reader, I don't care yet
Hideous as you may be,--The phrasing feels stilted. Hideous is another adjective too many without any imagery.
Thou, will die bold.--You shift to archaic language and it comes across awkward.

Those were my expanded thoughts. It isn't good. It isn't working. I can't tell you how to fix this, and make it effective.

I hope some of that helps. Sorry I can't be more positive.

Best,

Todd