An unintentional funny moment created by the dub. In episode 35 of season 3, Boris makes a deal with Neoborg/Blitzkrieg Boys where if they lose to Garland, they will have to join the BEGA League. In the original Japanese version, Yuri says that he'd rather die than work for him again prompting a genuinely horrified look from Garland. In the dub version, Yuri says he'd rather quit beyblading than work for him again... with the same horrified look from Garland.
At the very end of the dub of episode 45 in season 1, after Kai realizes his mistakes and returns to the Bladebreakers, he leaves to confront Boris, taking the helicopter his teammates had used to get there.
Ray: (last line of the episode, as they're watching the helicopter flying away) "Guys? How are we gonna get out of here?"
In episode 33 of season 1, the Bladebreakers are trying to find Kai who has gone off somewhere on his own, and Tyson suggests they go up to the Eiffel Tower to get a better view. As Tyson is making his way to the tower, Kenny points out a slight flaw in Tyson's idea.
Kenny: "I guess he never factored in that Kai might be inside a building."
When the Bladebreakers arrive at Robert's mansion, Tyson heads off on his own to find Robert and eventually reaches a room filled with death traps which he dodges by a really close shot until he slides down a dustshoot that ends in the fireplace where everyone else, Robert included, is. Robert's response to Tyson calling him out on the traps?
Robert: I gotta get someone to check those traps. It usually works. You lucky.
During the first Japanese tournament in the manga, Rei had been hyped as a powerful opponent. Comes his semi-final match against Takao, Blader DJ calls him in... And then cries in shock when he notices he's sleeping, as he was sure to win and lacked sleep. It got a Mythology Gag in the anime, where Rei, in the same situation, comes immediately after being called, but yawns and hints he just woke up because he was sure to win.
Chief: "Is this the hand... The hand that that touched Ming Ming's hand!"
*Daichi tries to run away after committing the error of shaking hands with Ming Ming*"
Episode 13 of season one. Quarter finals of the Chinese Tournament, first set of the first match, Gao of the White Tigers against a member of the Mongolian team. Everyone is being rightly hyped... And then Gao's stomach loudly grumbles. Everyone but Kai (The Stoic) and Rei (who may have been sleeping) is stunned into speechlessness (yes, even the overly serious Lai)... And then there's a mass Face Fault when Gao declares: "What?! I'm hungry!". Mao has to bribe him with free food to be consumed after he wins to get him to fight...
Seeing that, Mao declares that Gao has already won... And makes a comparison with food. Cue Oh Crap as soon as Gao gets distracted by thinking about food, followed by an epic one by Gao himself when he realizes he lost while he was distracted.
At the start of episode 14, BBA president Daitenji is enjoying the early morning when he hears Takao's pained scream. He asks the Bladebreakers what happened... And they explain: Takao was oversleeping, so Rei fed him a whole chili pepper. Cue the scream.
Also, it didn't actually work: Takao did wake up, but then fainted in pain.
During the semi-final match (to which Takao and Rei were late due the chili pepper debacle and an avalanche blocking the road), Max's Oh Crap when he realizes he's winning too fast (as they risk being disqualified if they don't have at least three contestants) and him cheering when his opponent recovers.
Takao is bored out of his mind while on the plane for America, so the Chief suggests him to play at something, or read something, or eat some fruit. Takao's reply? He aims to the corner with the evidence that he already did it until he grew bored.
Takao's grandfather. Especially when showing off his Kendo skills.
The ultimate example of Serious Business in this series: PPB, the organization training the American Beyblade team, is literallyBacked by the Pentagon. And NASA. It gets to such an absurd level that Max and Kai, the latter of which would later proudly declare that Beyblade is Serious Business to him, looked like they found it ridiculous, and Rei and Takaovoiced this feeling.
The Chief begging the PPB scientists to hire him as a janitor, and his Imagine Spot.
Every single known PPB beyblader of season one is a Bunny-Ears Lawyer, but reservists Tony and Andy take the cake:
Tony is a rapper... And sings while beyblading, with his beyblade dancing, dodging and attacking at the tune of the song. Yes, it's just as ridiculous as it sounds (and Takao's expression when they fight and he starts singing is quite funny). Then we have his face when Takao follows the tune and beats him, even before getting hit in the face by the beyblade.
Takao trying and failing to bullshit his way out of a tight spot.
The Bladebreakers are near a mountain lake for training. Expecting something like the PPB, Takao starts complaining, but his grandfather declares it's a good place for training... And, for food, they can eat robins and other birds. It's Max' Big "OMG!" and the faces that sell it. Especially Rei's, as he's not shocked by the suggestion but happy.
During the special training, the Bladebreakers are to train near a waterfall, and Antonio, their temporary training partner, explains Takao that it's to develop control and balance when launching, and that you should train in similar dangerous area for that. Takao, of course, asks who says so... And Antonio points the nearby sign.
Rei's crush for the actress of the celebrity team.
Rei and Takao wants to take part in the charity match, even if for different reasons, but only one member of their team can go. So they challenge each other to Rock-Paper-Scissors. Who wins? Max, of course.
Still not laughing? Well, the name is left out, but by the looks and the era it's intended to be George W. Bush. Now imagine that guy playing beyblade with a blonde Hollywood star and a wrestler against three children...
Emily's smug face as she brags about the PPB equipment to Takao and she announces him that, according to the PPB's expectation, the Bladebreakers are going to lose their match against the Equador team.
The origins of the Equador's team beyblades: Sancho received his by an iguana he used to play hide and seek with, Fernando had a sea lion give it back to him after he had accidentally dropped it in the sea, and Bartolomeo had his hatch from an egg a giant tortoise dropped before him to thank him for driving away some bullies.
And the Bladebreakers' skeptic faces as they're told about them. Especially with (Takao openly called bullshit on Bartolomeo's story).