Thoughts from this round:

Madness' Door - Once again, I'd re-iterate the need for having a proof-reader before submitting a story. There's a lot of switching between present and past tense verbs in a weird jarring way, and the grammar is a little strange. I would recommend also varying some of the sentences. Each sentence follows a very simple format, with little to no subordinate clauses. Rearranging the elements in a sentence makes for more interesting reading. Try adding some passive sentences and prepositional phrases to bring attention to things you want to highlight, or to downplay other things that are less important.

The Mechanic - The writing is sound, and the first half reads very well. The second half falls victim to what I like to term 'delusions of grandeur', making all sorts of wide sweeping profound-seeming statements in the Elusive's dialogue that all together come off as very cliche. I also agree with other readers who have commented on a sharp disconnect between the first and second halves. Overall though, the story is cohesive.

A Live Arm - This one is also technically sound, but I felt that its greatest weakness was character development. It felt like a story about Generic NPC#1 murdering Generic NPC#2. There was no real sense of who these people were besides the fact that they were friends and played baseball. I'd really like to see this author flesh out the characters and events some more, to make the readers believe that these are real events that happened to real people instead of just a story kids might tell around a campfire at night to scare each other.

Jack the Green Slider - I find it hard to pinpoint what I disliked about this story. It has lots of moments of really great writing. I think perhaps the story just felt awkward and disjointed, and made me confused.