[1] Its main feature was a moving Gundam, an 18-metre tall[2] "mech" (a large mechanical automaton which in its fictional universe has a human operator inside) from the Japanese animated franchise Gundam.

[3] Originally planned to open by October 2020 to both celebrate the 40th Anniversary of the Gundam franchise and for the 2020 Tokyo Olympics, the construction of the exhibit was delayed due to the COVID-19 pandemic.

[4] On December 18, 2020, rock band Luna Sea performed Gundam's 40th anniversary theme song "The Beyond" on live TV at the opening ceremony.

[8] Events for the closing ceremonies on March 31, 2024 included a speech by series director Yoshiyuki Tomino, a "performance of the last activation experiment in a scenario that continues the story from the opening event", and a drone art show consisting of about 1000 drones and fireworks.

Yoshiyuki Tomino, the creator of Gundam, personally worked on the project.