You are an alien that has traveled here from another part of the galaxy.
Your mission is to kill those pesky Earthlings and end all life on the planet and their threat to the galaxy.

Will you blow up the planet?
Will you go down there and kill in person?

King Glooberhurst directed that you be creative in your extermination methods so a recording can be flashed to other potentially pesky civilizations as a warning.

Will you go for efficiency or torturous sadistic brutality?
Do you wish to send a message of our simplicity in terminating a planet or are you looking to make a statement of dedication to the cause?

What is your preferred method? Its okay to have more than one method because it gets boring flying around all day.

Lets see...

I'd hook my tractor beam up to a planetiod in the Oort Cloud and drag it to the far side of the Sun in Earth's orbital path. I'd stop all its movement and fracture it into about a dozen nice sized chunks.
Then I would take up a spot above the Sun and watch as Earth comes around on the guitar and runs into my silly little trap. Tee Heee Heee... They see it but can't do anything about it [snort] hahaha. Gotta be sure to record all their planetary frequencies.

"Sir, we're gunna hit a bunch of rocks that used to be a planet!"
"When will they get here?"
"They're not moving, sir. We are!"
"PUT ON THE BRAKES!!! PUT ON THE BRAKES!!!"
"What Brakes Sir?"
"AHHHHH"
Thunk, thunk, thunk bobble, boble, willy thunk.

Okay Julipererten, You stay here and I'll go over to that side of the Solar System.
The idea is to initiate collisions that ultimately impact Earth.

You get 1 point for each collision.
You get 2 points if one collision splits and results in a double impact.
You get 5 points if you include their Moon in the combo.

Okay, I go first...
I'm gunna do the thrice around the system, double loop back - 6,000 point, Moon Kills Earth shot with a single pico-second sensor reading.
Watch this! (Hold my beer)

[[[woao woao, woao, woao, woao, woao, woao]]]

A bobblehead ray? Oh c'mon Tom can't you think of anything cool?

I know its lame but watch what happens at the point of maximum mass expansion...
[[[Sploik]]]
P r e t t y

ATTENTION PLANET EARTH, WE HAVE YOUR STAR SYSTEM SURROUNDED
King Glooberhurst HAS ORDERED YOUR ANNIHILATION.
47 OF YOUR EARTH YEARS AGO WE FIRED A JOINT ASSAULT ON YOUR SYSTEM
YOU ARE ALREADY DEAD AND YOUR STAR IS ALREADY DESTROYED. IT JUST HASN'T GOT THERE YET.
PLEASE STAND BY...
THIS IS A PUBLIC SERVICE ANNOUNCEMENT

Whaaa, That little planet...a threat?
Seriously?

Yup, we've been ordered to take it out.

Seriously? By who?

King Glooberhurst

Seriously? He feels threatened by them?

Yup

Did he say how? How we should assure their demise?

He suggested to be creative...

Creative? Seriously?

Yup, creative.

Lemme think a second...

Can we just blow their atmosphere off to space like we did with those Martians?

He did say creative...

Hang on....

I got nuthin...

WAIT... be right back.

He goes down to the sample deck and grabs a small black box and heads back to the control room.
Holds up the box and grins

No, that's just not right.

Well, you said he wants creative.

He tosses the box onto the teleporter and hits a control and whoosh, gone.

The box appears in the Earth's Pacific Ocean and dissolves. The reactions starts a cascade effect on all the water in, on and around the planet. Everything that has water is quickly turned to a cement like substance.
The atmosphere falls out of the sky and the Earth becomes one solid brick.

Creative enough?

Okay fellas, You gotta take some landers and go down there and grab some of them humans.
Take them aboard and do weird stuff to them and put them back. Save some for later tho.
Be sure to avoid cows at all costs. If you encounter a cow, destroy it.
Try not to practice any of your artwork on their fields either, they hate that.
Get them all worked up and scared.
Sit back and have some popcorn and watch them destroy themselves.
It'll be a short story but should prove to be quite entertaining.

<<<I AM YOUR GOD>>>
<<<YOU WILL KILL EVERYONE THAT DOESN'T BELIEVE IN ME>>>

c'mon, cut that out, they'll never believe that

wanna bet?

FIRE the reaction pods
How come you told them they were Leg Chambers?
What is a Leg Chamber?

I dunno, just made it up. Told them I was sending them some Leg Chambers to make it easier for them to communicate with us.

Yeah, but why Leg Chambers?

I was thinking about Zythilium's legs when I was talking to them and it just stuck in my mind.

Yeah, she has some of the most wonderful sets of legs, all 6 sets are gorgeous.

King Glooberhurst, Mission accomplished.
I planted a pregnant Phentillian Carbon Eater in their rainforest.
The planet should be gone in about 6 days.

The "Suitcase" as been placed on the far side of the Moon according to your instructions.
Activate Gravity Amplification Drive...

Suitcase opens and a nearly invisible jet streams outward.

Slowly at first but gaining speed the Moon Moves closer to the Earth.
Faster and faster it gains the distance.

This is gunna be GREAT!

Quadrant Commander Arriving {Ding}

You were told to be creative! (whacks Captain Norble on the head and it splatters against the console)
Put your head back together and explain why they are still alive!

(The captain fiddles about with his head a minute or so and starts to explain ...)

Forget it.
When exactly is your little plan going to end these freaks?

well...

Forget it.
I'm taking over.

Send a ship to that planet and bring me back some pizza.
While you're there, separate and lift the tectonic plates and give them a good shake.

Yes sir! What do you want on your pizza sir?

Make it a Veggie Lovers with extra cheese.