Parsley, Parsnip, and Parmesan are three sisters that the player can find trapped in sub-areas of The Jungle. After freeing them, they will reward the player in Olmec's Lair and make brief appearances in other levels.
In levels 2-2, 2-3, and 2-4 in Jungle, the player will always find a single sub area containing one of the three sisters. They will be trapped in a small room. Opening the room up by pushing the Push Block out of the way and approaching the sister will prompt them to say "Thanks! I can't believe I got stuck in here."
Each sister has a designated level that they spawn in: Parsley will spawn in 2-2, Parsnip in 2-3, and Parmesan in 2-4.
Once the player makes it to Olmec's Lair, they will find every single sister that they freed in The Jungle in the top right of the level, at the top of the structure with the ladder. When they see the player, one of them will say, "Here's a little something to help you out!"
If the player rescued Parsley from The Jungle, they may find her in the sub area of 4-3 of Tide Pool. There, she will warn the player before they progress, telling them "I don't have a good feeling about that door."
Within the Wet Fur Cave of Ice Caves, Parmesan will spawn if the player previously freed her. She is found on a platform to the left of the Yeti Queen, telling the player "Brrr! I wish I brought a jacket!"
Madame Tusk's Palace of Pleasure
Within the Palace of Pleasure found in 6-3 of Neo Babylon, Parsnip will spawn in the left side of the upper floor of the place if saved earlier. She will remark "Great party, huh?"
Killing or attacking a sister in Olmec's Lair while another one is present will instantly anger the other one.
Note that if a player angers or kills a sister anywhere else, the others will not anger, as they will not hear about the incident.