[quote=@Gisk] The cool thing about gundam as an example is that they've been all over the spectrum between real and super robo, so you can kind of point at different places in the franchise for inspiration. Like, maybe starting with something like Alaya-Vinjana, or psycommu controls; it's mostly a real robot, the thing that makes it special is how it integrates with the pilot, either psychically or perhaps through neural implants. Or maybe spiritually, if we wanna go that direction. Then develop a "psycho frame" version, that's more integrated and lets the user project some amount of psychic power(or spiritual, or whatever!) through the robot. And eventually end up with stuff that may as well be magic, like the GN particles in 00. They don't even pretend to explain the technology, GN particles just do whatever it is they need to. They're propulsion, letting the gundam just kind of float around instead of needing thrusters. It produces a field that can absorb attacks, and it can be projected into beam attacks. But also it fundamentally alters the pilots, and makes them evolve at a crazy rate(but there's also a "bad" version of the particles, that will cause DNA damage, but that's okay because the "good" GN particles can heal the damage too). And if you wanna do combiners, maybe they literally just fuse together at that point. Go full super robo and just have a scientist do some techno babble on the side about how their constituent molecules harmonized briefly to allow the fusion, or something. [hider=Idea] Maybe our robos use an otherworldly, semi-sentient power source that bonds with the pilot, and the furthering of that bond could be the entire impetus for the advancement of their power. Early in development, it's just viewed as a fancy, super advanced reactor, which is necessary for machines of this scale. The robot itself is more or less just a machine(the absolute bleeding edge of technology, bust still), but unbeknownst to the R&D team, the mysterious power sources that they used form bonds with their most frequent pilots, and soon they stop responding to anyone but their chosen pilot. Over time the engineers realize some of what's happening, and lean into it with their development, leading to further advancements. [/hider] [/quote] Big fan of mysterious alien tech that bonds with the pilot and lets the machine evolve alongside them. BIG fan.