OH Yonder Plothole

When i was travelling into yonder beam
Things were not as they seem
Harbinger's crap, has aim like a bat
Couldn't hit my neighbours old cat

As i limped into yonder beam
Things looked like a dream
Saw bodies and a keeper, knew i was deeper
No time to be a little weeper

As i pressed the console
In my dark lonely househole
My Shepard collapsed
Like a silly old twat

Soon my eyes saw
Like a stain on a door
A small figure approach
Like a disfigured cockroach

Tis when i met Spacebrat
That plotholes got fat
With no logic contained, the story just wained
No choice to see Spacebrat slain