They used to play this on adult swim all the time around 2006. I was lucky enough to be a kid and watch it.

Always in the year 2,000 love gigantor & speed racer acqa man

My very favorite cartoon when I was growing up coney Island NYC.

Me too

This belongs on the OK-Boomer Channel

I remember this we'll

Yesssss my childhood memories run home from school in the seventies the best cartoons EVER

This robot rocks!!

I'm 71 and remember getting out of 5th grade and headed Straight home to watch Gigantor, Astro Boy, The Submariner, Tobor the 8th Man, The Hulk, Superman, and the Amazing Three. My mom always had a sandwich, a Pepsi, and some chips waiting for me. One of the true golden times of my life. Thank -you for a walk down memory lane.😊

I remember watching this when I was 5 years old. It was exciting and scary. The robot eyes and nose really creeped me out.

I've always suspected it was the voice cast singing the theme

I've always suspected it was the voice cast singing the theme

The kid missed a few payments and Gigantor got repossessed by the finance company...used to watch this on UHF 32 out of Chicago

11:31 He sounds like a robot "Well Cat's Meow...<ACKWARDLY LONG PAUSE> ..... You win this round (In a Dead Robotic Voice)....LOLLLL You think they 1995 Microsoft Robot Voice to Act this guy?? hahaha

4:11 I give them 30 Seconds...TOPS in that Antartic FREEZIN' Water....lollll

Every time I watch thsi I sing the Song :D

Hey doesn't Jim spark look like speed racers little brother . And the old man looks a little like speeds racers father . This was my favorite made me the the engineer I am today .

Have it on dvd

I have more respect for the villains in this show than the villains in real life and even more so than most of the good guys in real life. They know they are up against a robot that can fly 973MPH, has armor that can shrug off a 127mm round like its just a BB-gun shooting a plate carrier steel plate, they watched as without even a attack other than melee it kills over half their soldiers in mere minuets, and what do they do? They lead the charge of their army on the front line in a fighter plane in zones where there is a anti aircraft gun literally everywhere you can fit one. And what do leaders in real life do? Hide in bunkers, and distance themselves, stay in the most defended parts of their own country. Cowards all of them!

My childhood right here.

How is this possible?

Loved him and still do!

I used to come home from school and watch Gigantor. Speed Racer and Giant Robot. It didn't get any better then that for a 6 yr old in 1970🙂

I'm 58, in '72 I was like 7, saw atop a shelf(friend's house) action figure of Gigantor, I'm so heartbroken not touching it😢..... today it may worth a lot

Gigantor, Space Ace, and Prince Planet were my favourite after school treats.

This, kimba, marine boy, king Kong and speed racer were it for me as a kid. It was so bad for me that I would sit and wait for thr TV to come on to watch this.😅

“I hate to leave, but I’m cold” no idea why that had me laughing so hard

Gigantor is my favorite cartoon of all time! There was a time, probably back in the late 60s, or early 70s, when I knew just about every episode of this cartoon! No one could pull me away from the TV, or change the channel, if they did, I would have a fit! My siblings hated me! I was the youngest one! I used to think my father was Gigantor, when I was a child. When he was a little older, he was a little round like Gigantor. His watchband reminded me of Gigantor's bands he had on his wrists. Gigantor was my childhood hero, my father was my hero all the days when he was alive! He's still my hero, for all the days that I still live. That's why this cartoon means so much to me! I'm 61 years old now, will be 62 this May. Long live Gigantor!

We all watched this but my sister never understood it

I used to watch this with Ultraman speed racer in channel 52 LA CA im 56 now& this brings back 💯 memories 💯 thank you for this!

1. of the first Anime cartoons we got in 🇦🇺Australia, in the 1960's when I was a Child. Just Loved Gigantor, Astro Boy, &. Prince Planet.😊

If he gets elected again Trump wants to have a Robot army !💪🤖🤖🤖

Greatest cartoon of all time. Growing up in Long Beach, CA in the 60's. Miss those great days

Dr. Scarab on the retiree circuit, whaaat

I'm now 68 years old, and I still remember coming home from school and watching both GIGANTOR and Speed Racer on the tube.

Love that cartoon, 6/63, I was 8

When you are 6, 7 or 8 years old, television is in black and white, and there are only 13 good channels, this becomes the hi-light of your day, especially with chaos on the streets of New York City and a world at war. Everything was huge and wondrous back then. We took nothing for granted.

All these cartoons had the jazziest music.

I've been trying to get someone to know Gigantor as it's the first memory of a cartoon I have and good old KZbin has helped me. I even did the arm thing like him😍

.... wish i had a space-age robot 😞

As a kid, I used to sing the theme song and run around our house.

Saw this on the TV channels in Lagos Nigeria early 70's

Love em. Seen em when i was 7

I’m a 90’s kid, and I grew up with this cartoon. I can’t remember what station played it, but my dad would watch it with me when I was feeling glum. So many fond memories. Thank you.

Bigger than big, stronger than strong

Cartoon version of Johnny Sokko!!

Watched this when I was too young to understand it.😅

Loved Gigantor as little boy in the mid 60’s

The old whale disguised as a submarine gambit. Diabolical, but brilliant.

I love the music theme