As always I don't own of these characters - and are owned by their respective creators!
Comments and Constructive Critism are always appreciated :D - I haven't played hte game for awhile so my memory is kinda fuzzy
If I was going to give this a time line - I'd say it would probably be about just a little before KH2
My World
Prologue
It was nearly one o'clock in the morning in Gotham and the Joker decided to take a little midnight stroll through the city. He loved to watch rats scurrying across the sidewalk when they heard his spats coming by. He loved the smell of car exhaust and carcinogens in the air. He especially loved the random gasps and shrieks of panic as he passed by the few night walkers.
He wasn't concerned with blending into the crowd tonight. No sir, in fact he hoped he would see his darling Dark Knight come swooping down to save him from his particularly tame evening. And his wicked grin swept across his face when he heard a trash can lid fall to the ground in a near by ally way.
However, his grin quickly faded as he looked into the ally's gaping black abyss. He didn't see his playmate at all. Not a single spandex covered limb twinkled from the street lights. Something seemed terribly off – now thinking about it – the whole scene starting from the trash can seemed utterly wrong. The Caped Crusader relied on his stealth and ability to blend in to his surroundings to confront his opponents – no, this was NOT him – not in the least.
The Joker furrowed his brow as he began marching himself into the dark ally. He'd teach whoever it was that made that noise not to give him false hope!
But the thought of brain bashing and back breaking soon fled his mind when he saw the source of the commotion.
It was a tiny thing, compared to his tall stature (he's 6'5" people!), and was all covered in black. Antennas sticking out of its head made it look like a remote controlled doll. Now who could've had the money to get THIS done? Was it Harvey? Pengers?
As if hearing his thoughts, the little black thing turned to look at him and shook its head.
The Joker looked over it quizzically and saw that it's chest bore a symbol of a heart with an X marked over it.
"No hearts allowed…" Joker grumbled under his breath at this observation and started pondering on the creature's whereabouts.
A minute passed and neither he nor the little monster moved a muscle, and then suddenly its antenna twitched and it ran off. The Joker blinked before running after it and seeing it plunge itself head first into a large shadow on a brick wall.
"Curiouser and curiouser…" he paused a moment before rolling his eyes, the Mad Hatter would've gotten a kick out of that slip up.
He looked around the ally and inspected the area around the wall. There was no sign of the little antenna guy and he was starting to believe that maybe he should cut down on experimenting toxins on himself.
The Joker walked into the shadow the creature jumped into, perhaps there was a trick door or…jello?
The wall he thought was brick was apparently extremely squishy and jello-like. He plunged one hand in first to check out the area – it seemed cold in there – wherever "there" was. He plunged a second hand and a foot before, with some hesitation, his head.
The entire room was black, save for a beam of light in the middle of the room. He pushed his whole body through the "wall" and was immensely delighted to find the transition hadn't messed up his silk purple suit or his pompadour. The Joker began walking towards the light and darted his green eyes about to check his surroundings, but the area was literally pitch black.
"Ollie Ollie Oxen Free!" He shouted into the darkness.
He stood just outside the circle of light and looked around the room again.
"Tsk. Tsk. Tsk. You know, all black hideouts died in the 80's."
Suddenly a voice boomed out from darkness.
"Joker."
"Yes, I would like some fries with that shake!" He began chuckling as the voice boomed out again, ignoring his comment.
"We have a proposition for you."
The Joker's grin grew wider and all his sharp teeth were on display.
"Normally I would turn down such a thing, but since you all seem like such a good bunch of kids," he looked around at the darkness, his green eyes sparkling, "I'm willing to make an exception."