I fucking love fics when people from amity park go to Gotham 'crime fucking central' City, and they are the craziness thing to happen.
A joker attack? They just collectively beat the shit out of him and his goons. They don't even fight them in like an actual fight. It just chaos. Fucking lightsavers, tackling, kicking the shins, biting. Their's no dignity left for the joker and his men.
The riddler? Someone just punchs him to hard and he's down for the count. That mans dead.
Scarecrow? They just goesn't breath in the fear gas and hits him with a pan or something.
they are the menaces of Gotham now. Danny doesn't even be phantom in Gotham, he's just a normal guy to these people. It just danny and his classmates. The villains have never known peace since. And the poor bats or trying to find this feral group of children, who seem to have no safe for themselves.