Tottoko Hamutaro Anime Dechu! is a direct-to-VHS OVA released on September 15, 1999. This was the first attempt at an animated adaptation of Hamtaro, and consists of four short episodes. 

The VHS was only released as a mail-order from the September 1999 issue of Shogakukan, and given away for free to Shogakukan staff with preschool children. 

(Source: Hamtaro Wikia)

GOSHO collection reveals the origin of the smash hit &ldquo;Detective Conan.&rdquo; 
&ldquo;GO&rdquo; into his world, and we will &ldquo;SHO&rdquo; you SEVEN romantic and exciting stories created by GOSHO AOYAMA. 
WAIT FOR ME (30 min.) 
A genius inventor, who is still a high school student, has a girlfriend two years older than him. One day, he invents a time machine and attempts to go two years back into the past, to become the same age as her. 
However, it is she who ultimately uses the machine to travel through time! 
TEN PLANETS IN THE NIGHT SKY (10 min.) 
Meet Baby Conan! 
Yukiko Kudo is looking for her missing husband. The only clue to find him again is to decipher a mysterious message left for her. Their baby, Shinichi Kudo, one who later becomes the famous high school Detective Conan, will at this age already be offering some important hints for her. 
THE WANDERING RED BUTTERFLY (7 min.) 
A handsome detective, Yusaku Kitakata, receives phone calls from a mysterious woman day after day, with a new case each day. He of course solves them one by one. But the biggest mystery is who is this mysterious woman? 
PLAY IT AGAIN (30 min.) 
Thanks to the mystical powers of a Cherry Blossom Tree, a 70-year-old man with a secret sword technique goes back into the past and becomes the same age as his granddaughter. While enjoying his youth for the second time around, he notices that a player is after his granddaughter. 
SANTA CLAUS IN SUMMER (30 min.) 
Keisuke, a young man of 17, accidentally activates the Earth Destruction System. The destiny of the Earth now depends on whether he can stop the system within 24 hours. However, suddenly amnesia strikes him and he forgets the pin number to stop the system. The time is running out... 
DETECTIVE GEORGE&rsquo;S SPECIAL CASE (30 min.) 
A girl is fleeing from men in black. She runs into a detective agency and discovers that the detective there is a super-miniature-size, cool dude. He risks his life trying to solve a case for this client. Will they come through in the end? 
MAKING OF DETECTIVE CONAN (7 min.) 
Do you know how to make animation? 
Everybody wants to see the workings of an animation studio. 
Based on the concept of Detective Conan, the three sub-characters visit the animation studio of Detective Conan. This episode will surely catch the hearts of Detective Conan fans! 
[The actual animation is also involved in this special.] 
(Source: TMS Entertainment, LTD)

Gekkou Kamen is retired on the moon, so his trusty motorbike returns to Earth to find a new hero to take over the job of defending the Earth from alien invaders.

Teppei have managed to defeat Machine Empire’s forces time and again, escalating his rescue attempt of his brother into an all out war! His courage has even earned the support of the Empire’s Spiritual Guardians. Together with Teppei, they now seek to learn Machine Empire’s true motives and put an end to their rampant destruction.
 
(Source: TMS)

The Twilight diamond's rock-solid secret is about to be cracked. 
 
As Lupin's mentor Don Dolune Lies on his deathbed, he hands the master thief a gift: the diamond named Twilight. But it's only half of the treasure-the other half of the Twilight can be found in Morocco. But it's not as simple as "X marks the spot" when a civil uprising is broiling between two factions in this desert paradise. Lupin must contend with his sometimes-partner Fujiko, his feelings for the gorgeous brunette Lara, and on top of it all, the relentless whip-wielding maniac Sadachiyo.
 
(Source: Discotek Media)

Ran has a nightmare about her mother dying, but starts to remember what really happened involving herself, her mother, and her father from 10 years ago. Meanwhile, people are being injured by a certain culprit. Conan soon realizes that these people all have some kind of relation to Mouri, and that they all had a number in their name corresponding to a playing card and were being targeted in order, from the king down to the ace. The police soon decide that a murderous card dealer who just got out of jail and wanted revenge on Mouri is behind it. However, as injuries become murders and it is a race to predict who the next victims will be, Conan soon finds that the truth is something completely different, while learning about the incident from 10 years ago in the process.
 
(Source: Anime News Network)

Taking the original story of Detective Conan, this first Conan film follows his adventures as he struggles to find and capture a mad bomber who's loose in his home town. Chasing bomb after bomb, Conan must stop him before he destroys a skyscraper in the middle of the city, which has the potential to cause millions of dollars in damage and kill hundreds. Who's planting the bombs? What are his motives? Gather clues with Conan and find out!

Teppei is going to visit his older brother Kotaro Takamiya during a scientific conference after training with a mysterious woman named Karen for the past 11 years. However his plans for a family reunion become stalled when a woman named Aramis kills everyone in the conference to kidnap Kotaro. Teppei on the way to save his brother encounters a broken mechanical horse called B't X who revives thanks to Teppei's blood and is now his aide to save his brother from the mysterious Machine Empire.

Kyokuichi Tokyo Movie