Amuro's gunshot sounds off with a heavy "Bashu." But from the beam weapon Char fires comes a "Boopi..."—a mysterious, toy-like sound effect.

"Mobile Suit Gundam" is known for its realistic and weighty sound effects. The driving sounds of the mobile suits, the activation of the beam sabers, the firing sound of the mega particle cannon—all these elements lend realism to its science fiction world.

That’s precisely why this "completely out-of-place boopi sound" has become deeply etched in fans’ memories. It’s likely that more than a few viewers burst into unexpected laughter at this unserious sound effect crashing suddenly into such a dramatic scene.

The mysterious sound effect was simply too out of place amidst the otherwise weighty depiction of the battle. Beneath the surface of the fateful duel between Char and Amuro, this "boopi sound" quietly became a legend.

If you had been there, it would have been impossible not to make a retort to the dead-serious Char, saying, "Hey, where did you get that...?"

The currently streaming anime "Mobile Suit Gundam" is a robot anime produced by Sunrise that aired from April 1979 to January 1980 and was directed by Yoshiyuki Tomino. The series pioneered the new genre of "real robot anime" and had a huge impact on all later robot anime. While ratings were not strong during its initial broadcast, its popularity soared with reruns and theatrical releases, triggering the "Gunpla" model kit boom. Many spin-offs and subsequent entries in the Gundam series have since been produced, and the franchise remains highly popular to this day. Starting in April 2025, a new anime, "Mobile Suit Gundam GQuuuuuuX" (Jiikuakusu), is currently airing.

(C)SOTSU·SUNRISE

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