So yeah, bear with me for this one: What if Joker found/created a time travel machine?

I'd think that he'd go back in time to discover the secret identity of Batman (if he hadn't figured it out already), and then he went to see why Bruce Wayne became Batman. So he saw the scene where a bat flew into Bruce's room, and Joker had a funny idea. He went back in time just a little bit, and then, before the bat flew in, threw a cat inside. Then he went back into the future, and instead of Batman, there's Catman. Joker gets a kick out of this, and went back in time again, throwing lots of things into Bruce's room. Among the things he threw in is a hat, a duck, a banana, a bottle of Jack Daniels (and so Bruce Wayne became Tony Stark), a brick, a snake... and for the final laugh, he threw

into the room.

What do you think Joker would've done with a time machine?

The Joker would probably kill Bruce's parents' murderer where Bruce would see it, befriending him, and would raise Bruce as his own. Then ofcourse he uses his influence to make Bruce a horrible person.
I bet The Joker would love the irony.

Or throw batman into it, to the point that batman could prevent his parents from being murdered and of course change the future where batman doesn't exist.

ethier way Joker will get a win win at breaking batman down to the choice of what the ♥♥♥♥ he gotta do.

Wait... what if Joker threw Batman into the window? Will he create Batmanman? Or will he be quickly beaten up by Batman AND Bruce Wayne?

What if Batman is there to give psychological consolation to Bruce Wayne, making Bruce Wayne a better person?

I know!, Joker go back in time to play prank on himself, i mean why the hell not?

Ok guys bear with me guys

Guys

Ok

What if right

What if the Joker

Guys listen

What if the Joker is a time machine

Then he would use him self, too go back and kill bruce's parents.

What if! the joker went back in time and became the batman!

Batman start joking around.

guys-

guys listen.

what if-

what if superman-

what if superman saved a puppy?

Then that puppy would grow up and become batman.

I think it makes sense for him to go back in time and join up with Hitler during WWII, bringing advanced technology and knowledge, even if the Joker isn't a Nazi, I'm sure it would make for an interesting parody.
Also he has to have an epic fight scene with a WWII Batman, Bruce Wayne's uncle or something...

guys-

guys listen.

what if-

what if ironman-

what if Ironman was batman

Jack Daniels, window, we've done this before.
And we've become exceedingly efficient at it.

AFIAK its always sims_doc that overkills.

Also, That Joker.

I thought it was Dubstep Joker.

You know the one, Snake Eater!

Anyways, Joker would probably diminish the Arkham Asylum and then go into the Dark Ages to 'redefine' the Joker as the king.

That's what I would do.