Anti-Villain: Slush, Snowflake's twin brother, is more stupid than evil.
Bitch in Sheep's Clothing: Snowflake. At first glance, she appears to be a kind rabbit, but she is actually the one sabotaging the ice show by eliminating the competition by any means necessary.
Blatant Lies: When the Chief calls Dudley and Kitty into his office, Dudley asks the Chief if somebody ate Keswick's fish sticks, claiming it wasn't him. He then burps up an empty bag with Keswick's name and a note that says "DON'T TOUCH" on it.
Cranial Eruption: Dudley briefly has one after Snowflake hits him on the head with her frying pan.
Disguised in Drag: Kitty disguises herself as a male skater named Vince, while Dudley gets dragged into wearing a pink dress and calling himself Tiffany Rose Amber Heather. When Dudley asks Keswick why he has to dress like a girl, Keswick tells him it's the only costume they had in his size. After Dudley leaves, the Chief asks Keswick if that was really the only costume in Dudley's size, Keswick tells him they have plenty of other costumes in Dudley's size, he just wanted to get back at Dudley for eating his fish sticks.
The Ditz: Slush. When he first introduces himself to Dudley and Kitty, he mistakes a rash on his chest for a tattoo, and is described by Snowflake as being "a couple pancakes shy of a short stack". Later, when Dudley and Kitty discover that Snowflake and Slush are the villains sabotaging the ice show, Snowflake reveals that Slush is dumber than a box of hair, because she actually skated with the latter.
Expy: Snowflake and Slush are similar in appearance to Yin and Yang.
Frying Pan of Doom: When Dudley is about to uncover who the villain sabotaging the ice show is, Snowflake knocks him and Kitty out by hitting them with a frying pan.
Furry Reminder: As a camel, Dorothy Camel is able to go without water for nine days.
Genius Ditz: When Kitty asks Dudley if he has a plan to find out who the villain sabotaging the ice show is (without involving the old turtle), Dudley suggests that they use Keswick's ice skates to perform so well that the villains will have to come after them. Kitty admits to Dudley that that's actually a good plan.
Heart Beats out of Chest: Four male audience members who fall head-over-heels for the disguised Dudley do this while Dudley performs his skating routine.
Hold Up Your Score: When Snowflake and Slush perform their ice skating routine, it is so lame that the judges give them very low scores. The first judge gives them a 0, the second one gives them a 1, and the third gives them a -1. When Dudley and Kitty perform their skating routine to win the trophy that Snowflake's bomb accidentally falls into, the first two judges give them 10s, while the third one gives them an 11.
Human Snowman: When Dudley and Kitty perform their skating routine a second time to win the trophy that Snowflake's bomb accidentally gets stuck in, Kitty's skates toss snow onto the audience, turning them into living snowmen.
Pun-Based Title: This episode's title is a pun on "chili dog".
Running Gag: Throughout the episode, Dudley accuses an old turtle of being the criminal mastermind sabotaging the ice show.
Sweet Polly Oliver: Dudley dresses up as a girl to go with Kitty's boy. Boys fall in love with Dudley as a girl. Subverted in that they never actually figure out that Dudley is a male dog.
Theme Twin Naming: The twin rabbits who sabotage the ice show are named Snowflake and Slush.
"The Doomies" provides examples of:
Ash Face: Happens to Bird Brain when Dudley and Kitty sabotage his plan to blow up Petropolis with his Egg-sploding Egg.
Bad Hair Day: Snaptrap's Doomie-worthy evil plan in this episode is to give everyone in Petropolis a bad hair day with his Bad Hair Ray. Thanks to Dudley and Kitty sabotaging his plan, he and the other villains end up victims of the ray.
Beard of Evil: Both Dudley and Kitty each wear goatees in order to resemble their evil counterparts, Dr. Rabies and Madame Cat-astrophe.
Calling Your Bathroom Breaks: When Kitty and Dudley sneak out to foil the villains' plans, Kitty tells the villains that they have to go to the Little Villains' Room.
Chekhov's Gag: When Dudley and Kitty first arrive at the Doomie award ceremony, they are given gift bags which include Snaptrap bobbleheads, cheese knives, and ray gun keychains with hot and cold settings. Near the end of the episode, when Snaptrap captures them and attempts to lower them into his shark tank, they use the cheese knives to cut the ropes, the ray guns to freeze the sharks (and later unfreeze them to attack the villains), and the bobbleheads to swing on a support beam.
Epic Fail: As Larry points out, Snaptrap never wins a Doomie award. Last year, Snaptrap was the only nominee, and he still lost.
Evil Counterpart: Dudley and Kitty sneak into the Doomie award ceremony by posing as their evil lookalikes, Dr. Rabies and Madame Cat-astrophe.
Evil Duo: Dr. Rabies and Madame Cat-astrophe are a villainous dog and cat who respectively bear uncanny resemblances to Dudley and Kitty.
Eyepatch of Power: Dr. Rabies and Madame Cat-astrophe both wear eyepatches, so Dudley and Kitty do as well when they pose as them at the Doomie Award ceremony. At one point, Dudley has a hard time seeing where he's going, because as Kitty points out, he's wearing both eye patches.
Girls With Mustaches: Madame Cat-astrophe has a goatee, despite being a female cat.
Half-Dressed Cartoon Animal: Dudley. When Kitty reminds him that he's supposed to wear pants at the Doomie award ceremony, Dudley reveals that he turned his pants into a sack so he could fill it with free shrimp from the buffet.
Harmless Freezing: When Dudley finds a ray gun keychain with hot and cold settings in his gift bag, he accidentally freezes Mad Cow in a block of ice with it. Kitty later uses hers to freeze the sharks in Snaptrap's shark tank.
Hoist by His Own Petard: Thanks to Dudley and Kitty sabotaging their plans, Bird Brain ends up getting blown up by his Egg-sploding Egg, and Snaptrap and the other villains are given bad hair days with Snaptrap's Bad Hair Ray.
Hurricane of Puns: Bird Brain gives many egg-themed puns when he plans to blow up Petropolis with his Egg-sploding Egg.
Hypocritical Humor: The Chameleon disguises himself as a parking meter to steal all of Petropolis' money. At one point, a bear puts in a subway token instead of change. Chameleon's response? "Hey! That was a subway token! Honestly, this town is filled with crooks."
Improvised Lockpick: Madame Cat-astrophe uses her claws to free herself and Dr. Rabies from T.U.F.F.'s locks and chains.
Rule of Three: The three nominees for the Doomie awards are Bird Brain, the Chameleon, and Snaptrap.
Shark Pool: After Dr. Rabies and Madame Cat-astrophe escape from T.U.F.F., they capture Dudley and Kitty so Snaptrap can drop them into his shark tank and finally win a Doomie. Dudley and Kitty manage to escape by freezing the sharks.
