In "Fools in April" when Squidward's starts hearing and seeing people and their voices after getting yelled at for pranking SpongeBob, Mama Tentacles' House...the head of Mama Tentacles appears briefly and she says, "you stink!" Instead of the fish that said that. Squidward then says, "Mother?!"
The same "You stink!" voice clip is heard at the end of "Pickles."
In "Krusty Towers," Mama Tentacles makes her first actual appearance, instead of just seeing her head for a short time. Squidward commands Mr. Krabs to ask his mother as to how to make cookies like her. Mr. Krabs, with SpongeBob for help, come to her house. They knock on her door wearing kidnapping clothing and hold tools, and then Mama Tentacles opens the door and gasps. Afterward, a scene occurs that makes the viewer think that Mama Tentacles is being kidnapped. It turns out that Mr. Krabs was putting his laundry in the trunk but couldn't get it in. Afterward, Mama Tentacles says, "Let's go bake some cookies, boys!"
In "Ghost Host," Mama Tentacles makes another very short appearance. When Squidward is being tortured by the Flying Dutchman, the Dutchman uses Mama Tentacles as a way of torture. She says "Why haven't you called me?!"
In "Squid's Visit," she sowed a pillow with her stitch signature on it. SpongeBob made a replica of Squidward's house, and it is on the pillow. Her signature reads "For Squidy with love, Mama." When Squidward reads it, he says "mama" in an Italian accent.
In "Little Yellow Book," Squidward reads SpongeBob's Diary and one of the entrys is shown and it shows Squidward yelling at SpongeBob about all of the things Gary has been chewing and one of the things was a picture of Mrs. Tentacles.