Those Obnoxious Aliens
#1 - The Spring Blossom Picnic
Season 2 - Episode 2
#2 - All-Star Banquet! We Are Immortal!!
Season 4 - Episode 65
#3 - Don't Die! Ryoko Special Straw Doll
Season 4 - Episode 1
#4 - I'm Lum the Notorious! / It's Raining in Our Town
Season 1 - Episode 1
1-1. I'm Lum the Notorious! This episode opens with a baseball game and Ataru getting hit with a left field flyball. Ataru is soon escorted home and discovers he's been chosen to fight an invading alien force's champion in a 10-day game of tag. If he loses, the aliens will invade. But if he wins, the aliens will go home. Ataru isn't at all willing to play tag until he sees the alien's champion: the beautiful Lum. 1-2. It's Raining Oil All Over Town This episode opens with Ataru friends Megane and Lum's Stormtroopers at school who are watching films of the tag game. In this episode, a space taxi gives Ataru a ride home by accident and the fee is...too much. Since Ataru cannot pay, the space Taxi Collection Agency starts stealing all the oil in the world.
#5 - Full of Sunshine, Full of Amours
Season 3 - Episode 2
#6 - Fly, Imo-chan!
Season 2 - Episode 4
#7 - Love Triangle Black Hole / Hey Hey, It's a Little Demon
Season 1 - Episode 6
6-1. Love Triangle Black Hole Ataru is phoning Shinobu in order to make plans for a date, when Lum interrupts and get's Shinobu mad at Ataru. Ataru throws Lum out and spends the rest of the episode trying to contact Shinobu. But Lum is persistent and uses a ray to jam the phone lines. But this ray also has the side affect of making a plane and a helicopter vanish. 6-2. Hey Hey, It's a Little Demon Walking home from school, Ataru is assaulted by a group of black cats and gets a nasty bump on the head. At midnight, he is using two mirrors to look at the bump, when a little demon pops out of the mirror. The demon proves to be too much for Ataru and Mr. Moroboshi, so they get Cherry to exorcise it.
#8 - The Scary Electric Shock! / The Doll of Ill Will
Season 1 - Episode 7
7-1. The Scary Electric Shock! Cherry gives Ataru some yellow ribbons which when tied to her horns, negate Lum's powers. In order to coax Lum into wearing them, Ataru has to put on a big charade of really loving her. 7-2. The Doll of Ill Will After an odd loss of control of his body after dinner, Ataru finds out Lum has some clay for making voodoo dolls. Ataru takes full advantage of the situation until Lum make a doll of Shinobu, and Ataru tries to get it away from Lum.
#9 - WOW! The Mysterious Matsutake Mushroom Soup!
Season 3 - Episode 7
#10 - The Mysterious Seductive Beauty Sakura / Tormenting Virus
Season 1 - Episode 5
5-1. The Mysterious Seductive Beauty Sakura First appearance of Sakura, The Shinto maiden. Ataru can no longer endure Lum, so he has gone undercover. Unfortunately, at a restaurant, the appearance of Lum, Ataru parents, Shinobu, and Cherry blows his cover; and a mob chases after him. He manages to duck them and bumps into Sakura, who takes him home for exorcising. 5-2. Tormenting Virus Arriving at school one morning, Ataru is greeted by all boys in the school who are waiting for the new nurse, Sakura, arriving at school today. Ataru appears to be sick, but in reality he is possessed; and Sakura performs the exorcism.
#11 - Ten's Love
Season 2 - Episode 5
#12 - Big Battle! Ten vs. Ataru
Season 3 - Episode 3
#13 - Galactic Teacher CAO-2 Strikes Back!
Season 3 - Episode 5
#14 - The Birth of Ten-chan's Son? I Didn't Know a Thing
Season 4 - Episode 6
#15 - Neptune Beyond the Closet / The Confusing Dinosaur Age
Season 1 - Episode 8
8-1. Neptune Beyond the Closet First appearance of Oyuki, Lum friend and queen of Neptune. Oyuki also has incredible ice powers. Megane and friends visit while Shinobu is nursing Ataru, who has a cold; and they discover a gate to Neptune in Ataru closet. By accident, they go through this gate and arrive on Neptune to be greeted by Lum and Oyuki. 8-2. The Confusing Dinosaur Age While Ataru is flying an ultra-light, with Lum and Jariten tagging along, Kintaro crashes into him. With the help of Lum's electric shock, the crash send them all back in time to the dinosaur age.
#16 - Sleeping Beauty Princess Kurama / Athletic Woman Hell!
Season 1 - Episode 9
9-1. Sleeping Beauty Princess Kurama First episode with Kurama, the karas-tengu princess. On a field trip, Ataru and friends accidentally meet a karas-tengu who takes Ataru to marry Kurama. Kurama then tries to reform Ataru to be her perfect husband. 9-2 Athletic Woman Hell! Kurama uses a weird dimensional door to try and cure Ataru of his lechery. Inside the door, Ataru faces hostile versions of the girls he loves.
#17 - Gimme Back My Horn!
Season 2 - Episode 10
#18 - Shocking Library - Quiet Please!
Season 2 - Episode 11
#19 - Pitter-Patter Christmas Eve
Season 1 - Episode 10
10. Pitter-Patter Christmas Eve Megane and Lum's Stormtroopers set up a plot to embarrass Ataru and get Lum to leave him at the same time. They set up a date who will make a fool of Ataru, but Lum finds out and twists things around.
#20 - Mr. Hanawa Arrives! It's the Springtime of Youth
Season 2 - Episode 12
#21 - Bizarre! The Medicine of Selflessness!
Season 3 - Episode 12
#22 - To Dreamland! Darling Battle Royal Abduction
Season 4 - Episode 14
#23 - Shutaro's Jinxed Morning
Season 3 - Episode 13
#24 - Lady Ryuunosuke!
Season 3 - Episode 10
#25 - Oh, Lonely Teacher! Kuribayashi Sensei Appears / Terrible Inspection Day
Season 1 - Episode 16
16-1. Oh, Lonely Teacher! First appearance of Kuribayashi Sensei Ataru and Kuribayashi are enemies from the very start. Then Lum shows up and Kuribayashi falls in love. Finally Lum goes out with Kuribayashi in hopes on lightening his spirits. 16-2. Terrible Inspection Day On a day when students mothers come to school, Mrs. Mendo and Lum's mother get into a dispute and Mrs. Moroboshi acts as judge by setting up a roulette game.