Momentum Express's logo

The Moment Express Development Organization logo.

Moment Express Development Organization (モーメント・エクスプレス開発機構, Mōmento Ekusupuresu Kaihatsu Kikō), or Moment Express or simply M.E. for short, were a mysterious private manufacturing company in Yu-Gi-Oh! 5D's.

Their work involved Ener-D (known as Moment in the Japanese version) related projects.[1] They also have a mysterious involvement with Iliaster.[2]

Clark Smith was the director of the company.[1]

Following the Three Pure Nobles's falsification of history, the company's existence was erased from history.[3]


Duel Runner engine

Moment Express have a partnership with Bolger & Company in the development of Duel Runner engines. Bolger & Company were commissioned by Moment Express to build an Ener-D engine. Moment Express receives financial support from the world to fund this.[1]


5Dx116 Infinity Concept Design

Infinity blueprints.

Infinity is a large machine built by Moment Express. It accelerates Planetary Particles in order to cause dimension distortion and create wormholes. The wormholes can be used to transport matter. Moment Express aim to use this as a form of space travel, which will eliminate the need to send rockets into space.[1]

Involvement with Iliaster

Moment Express have some involvement with Iliaster. They phoned Lazar to warn him of the arrival of the Three Pure Nobles as the new directors of Sector Security.[2]

Yusei Fudo, Sherry LeBlanc and Bruno infiltrated the Moment Express building to find out more about their involvement with Iliaster. Sherry and Bruno managed to find a file about Iliaster after hacking into their computers. Sherry copied this onto a flash drive.[1]



Momentum Express buliding

The Moment Express building.

The Moment Express building has a hexagon-shaped surrounding wall. Inside is a large dome with several spikes jutting upwards.[1]

5Dx116 Clarke Smith access key

Clark's access key.

The building is divided into different levels. Higher levels require access keys to get into. The access key is simply slid through a device to open the door.[1]

The building has tight security. Various surveillance cameras are set up in the hallways. Facial recognition can be applied to people seen on the camera. Facial details are compared with those of people they have on file in order to identify them. Fingerprints can also be read and compared to people they have on file. This was used to identify Yusei Fudo and Sherry LeBlanc went they infiltrated the building, posing as employees of Bolger & Company.[1]


Infinity is contained within a large chamber. When not in use a platform is closed over Infinity. When in use the platform is opened.[1]

A hanger containing dimension shuttles is located near Infinity. The shuttles can be transported to the platform above Infinity and will hover above the machine when the platforms are opened. The shuttle is used to contain the matter to be transported through wormholes.[1]

There is a series of tubes, which are used to test Duel Runners.[1]

The building has a food court which contains a number of restaurants, including Lucky Burger.[1]

Clark's office has a large monitor, which can split into four screens.[1]


Moment Express has a history with Iliaster and have done projects with Bolger & Company.[1]

Moment Express phoned Lazar to inform him of the arrival of the Three Emperors of Iliaster. When Lazar told Yusei and his friends about this, he did not know who the company that phones him was, but knew how to find out. He took them to the Accel Simulator arcade game, where records of Sector Security were hidden, including who the company that phoned him was.[2][4]

Yusei, Sherry and Bruno infiltrated the Moment Express headquarters posing as employees of Bolger & Company, Daniel, Eva and Timothy. They managed to learn about Infinity. While Yusei tested a Duel Runner in the tubes, Bruno and Sherry hacked into the computer system, but were unable to find information on Iliaster. They suspected that the information they needed was hidden away in a higher level of the building, so they snuck into Clark's office to steal his access card. Unbeknownst to them, Clark had already identified them through the security system. When Clark went to his office, Sherry and Bruno snuck out through a ventilation shaft, while Yusei faced Clark in a Concentration Duel to buy them time. While they Dueled, Bruno and Sherry managed to copy a file on Iliaster onto a flash drive. After the Duel, Clark revealed that he knew their identities and set off an alarm. Yusei caught up with Bruno and Sherry and tried to escape. They ended up hiding in a shuttle, which was part of a trap. The shuttle was locked and moved to Infinity to have them transported elsewhere.[1]

The Three Pure Nobles, in an effort to erase traces of their conspiracy from Yusei and the others, used Infinity to alter history, causing Moment Express to disappear from existence.[3]


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 Yu-Gi-Oh! 5D's episode 116: "Momentum Express Development Agency"
  2. 2.0 2.1 2.2 Yu-Gi-Oh! 5D's episode 115: "Press Him About the Mystery! The Endgame Riding Duel!!"
  3. 3.0 3.1 Yu-Gi-Oh! 5D's episode 117: "The Distorted Past"
  4. Yu-Gi-Oh! 5D's episode 65: "A New Threat, Part 1"
*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.

Fandom may earn an affiliate commission on sales made from links on this page.

Stream the best stories.

Fandom may earn an affiliate commission on sales made from links on this page.

Get Disney+