Here are some cheats for poptropica (Thanks to the PHB)

Ctrl+Shift+R (Makes your poptropican change hair,clothes,gender and sometimes you hold a hand-held item)

Ctrl+Shift+H (Changes hair color)

Ctrl+Shift+S (Changes skin color)

Crtl+Shift+P (Your poptropican wears a pumpkin mask)

How to get Black juice:

1.Go to 24 carrot

2.Go into dinner

3.Choose a drink that changes your hair color

4.When your poptropican drinks it press Ctrl+Shift+S


~Noisy Fish (a.k.a Cheat Dude or something like that :D)