|Format||Animation, comedy, family, fantasy|
|# of Episodes||27|
|DVD release||October 4, 2011|
|Previous Season||Season 5|
|Next Season||Season 7|
|"Rugrats" Episode Guide|
Season 6: 1998-2000
Chuckie adopts a baby duckling; Spike is jealous of Dil.
Chuckie wants to look better, so he goes through his own metamorphosis; Angelica pretends that she has a twin sister to get extra "goodies".
Tommy and the babies try to educate Dil; The babies try desperate to avoid taking naps.
Tommy tries to run the household while Stu is out of town on business; Stu undergoes a makeover at a health spa.
Stu goes to buy a new car from a crooked saleman; The gang discovers that Chuckie is left-handed.
Dil gets lost at the bakery; Tommy is under the false impression that not growing hair will keep him young forever.
The babies go to the zoo; Chuckie and Lil pretend to get married.
In an attempt to get Tommy's toy pony, Angelica trades the babies "magic beans", which Dil "eats"; The babies think that Dil has turned into a watermelon.
Angelica tells Tommy that he will disappear after Dil gets his old toys; Angelica performs ballet.
The babies meet their alter egos in the park; The babies see themselves in various works of art at the museum.
The babies visit a nursery; The babies visit their grandparents in the country.
The babies get involved in a ghost story with characters from Aaahh!!! Real Monsters; Chuckie fears revenge after Angelica sends Reptar an angry letter from him.
Chuckie gets a new bike; The babies perform music videos.
Chuckie moves into his own "apartment"; The babies hold their own prom.
Angelica tries to say silent to receive toys; Angelica ties Chuckie's shoes.
Chuckie looks for a career; The babies try to build an ark after fearing a huge flood.
Angelica tries to hide her cold; The babies perform an initiation ceremony for Dil.
Grandpa Lou competes in a wrestling match; Chuckie starts a new collection.
- "Runaway Reptar (August 3, 1999 )
The babies get sucked into an evil Robot Reptar movie, in which they must find Reptar, and then stop Angelica's evil Reptar.
Dil and Tommy must share their pet dog; The kids hold their own election.
Tommy thinks that he is turning into a monster; Susie gets a toy oven, but she cooks horribly.
Chuckie studies safety from an officer; The babies think that Grandpa will be sold.
Angelica makes Dil her "partner" after watching a crime film; Tommy tries to stop the other babies from thumb-sucking.
Didi is planting dill plants, which the babies think is baby Dil; Angelica tries to turn the babies against each other.
Didi completely re-models Tommy and Dil's room, against Tommy and the others' goodwill; Susie learns how to fix broken toys.
Chuckie wets the bed; The babies form a scout troop.
Chuckie destroys his shirt, and he cannot find a replacement; The babies try to get to the cookie jar for Angelica in a spoof of the Jurassic Period.
The babies dream that they are small, and that Dil is larger than life; Angelica tries to help with a business dinner for Charlotte's boss.
The babies catch various ailments; The babies sing a song.
- "No Place Like Home" (October 2, 1999)
Susie imagines that she is in a world similar to The Wonderful Wizard of Oz when she is under anesthesia while her tonsils are removed.
- "Be My Valentine" (January 11, 2000)
Chuckie tries to give a Valentine to his father, Chas.
- "Discover America" (May 5, 2000)
The babies go on an imaginary tour when Angelica and Susie cause some damage at a picnic.
- Acorn Nuts & Diapey Butts (November 7-9, 2000)
Angelica tells the babies that fall is the time of change.
- From Chuckie's Duckling/A Dog's Life to Wrestling Grandpa/Chuckie Collects, the Klasky Csupo Graffiti logo appeared after the credits instead of the Klasky Csupo Splaat logo. The Klasky Csupo Splaat appeared starting in Runaway Reptar.
- This is the last season to use traditional cel animation, the very last episode Acorn Nuts and Diapey Butts" saw the show switch over to digital ink and paint.
- Beginning with "Chuckie's Bachelor Pad/Junior Prom" the animation company changes from Anivision to Sunwoo Entertainment (the latter absorbed the former in April 1999)