After messing around with the Soul of Chogokin Getter Robo Go...I finally get why the 'Getter style' of gattai isn't more popular.
So for years, I was confused as to why, out of all the ways combining robots are built, the 'Getter style' of having three different robot forms based on what order they combine in wasn't more popular. Off the top of my head, the only others I can think of do something similar are Albegas, the trios in Transformers Go, and the various Aquarion mechs. It seems like such a simple thing to keep things varied for a mecha series.
Then I recently got the Soul of Chogokin Getter Robo Go toy...now I see why this transformation gimmick isn't used often. Maybe it's just my own lack of skills when it comes to handling a figure like this. Maybe the particular figure I own is just finnicky, but transforming this thing between all three forms is a massive pain in the ass. Nothing clicks together, it feels overly complex, and I am terrified of accidentally snapping and breaking something by doing the transformation wrong.
The individual Get Machines are fantastic. I got them displayed on my shelf and they look great. But compared to something like the SoC Zambot 3 or any of the Shinkalion toys I've gotten, this transformation is not fun no matter how many times I've attempted it.
I now see why a lot of Super Sentai (and now Project RED) mechs stick to auxilary and secondary mecha for more transformation forms. Hell, for my own high fantasy super robot project, I'm leaning more towards the gimmicks Ohranger Robo and the TegaSword had, with swapping helmets and weapons depending on the current pilot.
But hey, that upcoming Force Getter Robo toy looks cool, and Takara's impressed me with their Shinkalion: Change the World toys, so maybe that'll change my mind. I still enjoy Getter Robo and mechs like them as a fun concept...but I can see why making actual transforming Getter Robo toys is kind of an engineering nightmare.