Take on the Joker Clowns rioting at the abandoned Amusement Mile theme park
- "Ha ha ha! What's this? Has an uninvited guest stumbled into my toxin testing ground? So sorry I can't be there to welcome you in person. Enjoy the party -- if it doesn't kill you first!" — Joker
- Get to Amusement Mile
- Throw Bombs in River to Defuse Them (0/5) (617 xp) (10 xp for each bomb)
- Arrest Joker's Henchmen (0/10) (617 xp)
- Collect Joker Gas Inhalers from Clowns (0/20) (617 xp)
- "We need to get the formula for that Joker toxin. If I know Joker, he's left a trail. See what you can find." — Batman
Upon completion, Beware of Jokers Bearing Gifts is automatically started.
- The bombs could be used as an explosive stun weapon against Joker's minions. Note that they also stun players and officers.
- A Jokandroid may show up. When defeated, it would explode dealing 300 damage to nearby players.
- Plated Assault Treads
- 617 xp upon completion.