A bonus chapter in the original Getter Robo shows that at one point the Dinosaur Empire sent a Mechasaurus that could analyze and counter any of the Getter forms. Ryoma and Hayato are sick so Musashi goes out to fight it.... with a dog and a plushie as his side kicks.... oh and he even shows JUST HOW FREAKING NUTS the Getters would look like if they did their transformations out of order. It stuns the Mechasaurus so much it almost forgets why it's there and Musashi kills it.... everyone else just stares in complete and utter surprise.
One of the combinations is Jaguar + Eagle + Bear, which results in an absurd-looking robot that's Getter 2 at one end and Getter 3 at the other, CatDog-style.
Getter Robo Go
Rando sends an cyborg assassin to kill Go. Upon Go's mother seeing a thug-faced nine foot tall man with a trenchcoat and mohawk... she promptly calls out "Go! One of your friends is here!" and fusses for a panel why her son couldn't have normal friends.
Ryoma vs Go has a number of funny moments. The first is Ryoma beating Go up and holding up hi by the head with both hands while his bloody faced and almost dead looking, while talking to Kei. To add to this, he tell her to send Go back to Jin as a letter to prove how much he will not pilot a Getter ever again. Go responds in an annoyed way that his body isn't a letter, until Ryoma knocks him into the ground, declaring how letters don't talk.
After thinking he knocked Go out cold on the ground, Go catches Ryoma off guard from behind and proceeds to wack him in the back of the head with a bag full of guns, all with a crazed, enraged face. Ryoma's response "What The Hell!''.
Go attempts to catch Ryoma's leg in attempt to limit his movement. Ryoms towering over him just smiles in amusement, being impressed that Go's still standing after the savagae beating. He then throws Go into a ceiling beam to which Go refuses to release Ryoma's leg. They fall from the ceiling onto the floor.
They then start wailing on one another in a cartoonish dust cloud scuffle with annoyed and blood thirst expressions. When Kei tries to interject,the tell her stay out of it.
To cap it, after all this struggling, Ryoma with a defiant expression while butting heads with Go tells him he's a "Very Delicate Man". Yes, Ryoma, regarded as one of the most manly anime heroes, who fought dinosaurs, demons, alien insect and witnesseed countless deaths and gore is pulling the mecha of equivalent of Thor calling Kratos a "Calm and reasonable Person". Even go is confused by this sudden confession.
Arc Episode 8: During the send-off ceremony, instead of going along with the customs, Takuma instead starts singing praises for the Dinosaur Empire and Emperor Gore III loudly and even loudly spots the human hostages and make them join the parade (one of them includes Kamui's mom). Even Gore III is so flabbergasted but can't do anything because he, the Emperor, absolutely can't screw the alliance between humans and dinosaurs up. The look of his face at how Takuma redirected his ceremony is priceless.
Though Takuma's face is just as priceless as he goes into goofy cheers of "ALL HAIL THE GREAT EMPEROR!!!"
The bit in Arc episode 10 where it's revealed that Musashi has hundreds of clones on standby in the event of his death was made into a web browser game called "MUSASHI NEVER DIES" where the player assumes the role of a member of the Andromeda Stellaration who has to shoot down an infinite wave of Musashi clones. It's as crazy as it sounds.
This bit in the Arc dub: "Let's go find some dino-gina."
Even funnier when you remember Ryoma's memetic "FUCK DINOSAURS" line and that the Getter Robo and Darling in the Franxx fandoms have had a memetic Fandom Rivalry for some time now.
It should be noted that she somehow manages to punch out Gai for gawking at her, even though he's in a completely different part of Shin Getter.
Kei beating up the two guys trying to peek at her while she's taking a bath.
Neo Getter Robo Vs Shin Getter Robo
Neo Getter Vs Shin Getter has one, fn not the most, craziest iterations of Dr Shikishima in the entirety of the series.
Our introduction to this particular lunatic was him blowing up his lab door with a prototype weapon for Neo Getter, then he shoots it at the ceiling mid-explanation/laughter, causes rubble to hit his head, then continue on as if nothing happens.
Second was him bursting out of the ground after Gore levels NISAR HQ, blasting mind you, stealing a jeep with two of his colleagues in tow, crashing it, then showing off a weapon that can apparently destroy any barrier it comes across. Even Ryoma questions the sanity of NISAR and Hayato for bringing him onboard.
Go reacting to him being called a monkey ever since the King Siblings appeared with Texas Mack. His face the first time it happens doesn't give the pilot any favours for himself though.
Other Continuities / Misc.
In New Getter, Saotome watches Ryoma wreck three Yakuza thugs. After killing all three of them, Ryoma gets shot by a dart. Turning on Saotome and his bodyguards, Ryoma gets up close to them, only to be smacked in the face by Saotome's sandal. Ryoma is so literally gobsmacked that he pauses in his tracks long enough for the sedatives to kick in.
In Devolution Chapter 7, Professor Shikishima insults his own son, the stuck-up rich boy who attempted to harass Michiru, in a blackly amusing fashion while talking to Ryoma.
In the original anime series from the seventies, Hayato's idea to help Musashi overcome his fear of reptiles is to lock him up in a room filled with frogs and snakes and ignore his screaming requests to let him out. Surprisingly, it worked.
