>>23469189
You'll be fine if you just know the general context of
>grandson here's Mazinger, God or Devil
>Dr Hell and his friends
>Z gets curbstomped by the Mycenae
>Great exists to fight the Mycenae
>they'll both eventually do well against the Mycenae
>who the supporting cast are
>Grendizer exists
>Z was the first (afaik) piloted mecha
And a lot of other Go Nagai stuff are thrown at you at some point but they're just easter egg friends.
>>23469441
I'd put the other eps of Z floundering against flight and picrel in as well, as well as the Scrander blueprint stuff if they're not included already. A lot of that build-up really makes the Scrander's debut rewarding. Think I was already hooked by the first dozen episodes or less, Z actually floundering against that one pink bunny kikaiju instead of just powering through really won me over.
>Boss Borot
Despite him being a coward, he frequently does his best to protect the other guys even without a robot, I remember him being scared shitless but still shielding the others with his body, warming up to him makes Borot's debut rewarding and warranted as well.
>was told he kidnaps the scientists and forces them to make a robot
>really they're sort of just puzzled by the request at the end, Sayaka encourages them to build it and they do so willingly
>want to knock Koji down a peg but really they JUST want to be of some help
I don't remember which episode, but Borot's first kill would be notable as well. Likewise Aphrodite had a depressing send-off after being with her for 70+ episodes, but I could go on forever about this show.