#141) Joker's Wild
- Retain your sense of humor
- Connect 10 Special Moves
- Execute a combo greater than 30%
#142) Riddle Me This
- Defeat Nightwing
- Pick up 10 Question Marks
- Win without using combos
#143) Heart Broken
- Defeat Harley
- Throw twice
- Win after Harley reaches her max difficulty
#144) Catnip
- Defeat Catwoman
- Win without missing any button inputs
- Win with full second Health Bar
#145) Joker Venom
- Defeat Green Arrow
- Win without jumping
- Win with Heavy Attack
#146) Downsized
- Reach the end
- Collect all nanocubes
- Perform a slide 10 times
#147) Slow Me Down
- Defeat Hawkgirl
- Break free 5 times
- Execute a combo great than 20%
#148) Bombs Away
- Plant all bombs
- Win without getting hit while planting
- Survive 8 seconds without being hit
#149) Heads or Tails
- Defeat Catwoman
- Win with Light Attack
- Throw 6 times
#150) It Takes Two
- Defeat Batman
- Never reach max Super Meter
- Win without using Harley Quinn
