Jack or Jill?

My own version of classic nursery rhymes --- CURSORY RHYMES! part of no new project, first full draft

Jack and Jill
Ran up the hill
To fetch a loaded gun
The zombie mass,
Was large and vast
But bullets, they had one


Who to kill
Jack or Jill
Which one would survive?
The easy ride,
Was suicide,
While the other stayed alive

Heads or tails
Who'd prevail
Who'd bite a pretty bullet
The coin was tossed,
Poor jack lost
Jill, by chance, had won it

Zombies here
Zombies there
The hill gave them no shelter,
Jack stood up,
The gun, Jill took
And prepped the death fate dealt her


Upon the hill,
Blood did spill,
The last of the human race,
Jill pumped her head,
Full of lead
While zombies ate jacks face

Author's Note

Please ignore space between verse, will be edited.
My first full draft after agonising over the beat and rhyme scheme.
I still need help though, positive criticism and helpful tips greatly accepted to make it better or more fluent!

Reviews

[Misery]

It is funny. It has some flow and has some charm. I would like to see your second full draft once you've completed it.