If you liked the Getter Robo Armageddon anime, the Anime-Planet community thinks you'd like:
In the near future, a small team of scientists have solved the world’s energy problems with the Shizuma Device. While the development of the device was hampered by a chilling disaster, the device is now viewed as the ideal power supply; it is clean, recyclable, and can be used to power every device imaginable. However, the terrorist group Big Fire has found a way to recreate the disaster that was triggered during the item’s development, in every Shizuma Device around the world. It is up to InterPol, a group of justice specialists with extraordinary powers, to stop this nefarious plan and save the world with the help of their trump card known as Giant Robo and the young Kusama Daisaku, the crux of the robot’s power.
The 1990's saw a bunch of old TV and manga series re-imagined. The "retro" trend began with Giant Robo in 1992 and, in my opinion, culminated with Getter Robo Armageddon in 1998. These OVAs will please fans who grew up with the original shows, but viewers not familiar with the source material need not worry. The series are more than enjoyable, even if you're missing on the nostalgia.
Both Getter Robo and Giant Robo share similarities which go further than their names alone. Both are of the mecha genre of course, but both series show a strong character development and a storyline that'll keep you guessing up 'til the end who the good guys are and who the bad guys.
When Akito Tenkawa went looking for answers about his parents' deaths, he had no idea that he'd be indoctrinated into the spaceship Nadesico not only as a cook, but also as a mecha pilot – a job he wants nothing to do with! Alongside his childhood friend Yurika, stoic Ruri, otaku Gai and other misfit crewmates, Akito and the Nadesico crew find themselves in the middle of a brutal war against both the dreaded Jovian Lizards, and the military itself, who wants the civilian ship under their control...
Getter Robo Armageddon is a followup OVA of the original show that the crew of Nadesico watches, not the actual show. Don't expect the two shows to be the same. But if you liked Getter Robo Armageddon you might enjoy Nadesico poking fun at everything it stands for. And if you enjoyed Nadesico you might enjoy seeing one of the anime it chose as its primary source of jokes.
Unlike Nadesico, Getter Robo Armageddon does try and take itself "seriously". It's not a parody, but it is extremely over the top in violence and action.