You have a KZbin video on that, right? I personally find Gyro aiming works by giving the sense of the player doing more accurate aiming with their own hand-eye coordination.
I'd be for a remaster at this point that gets the treatment that was provided to "Pac-Man World Re-Pac" in terms of gameplay improvements. That would get things really going.
I could use Jump Glide or Land Mine. In fact, I can guess how the Transparency user with Upperdash Arm would move. By the way, Transparency lasts only 7 seconds, so tick-tock.
Weapon modifiers, especially Walking Speed+, which already allows for making running redundant for only 16 Value. Without weapon modifiers, Magnus Club has such abysmal range without utility other than the Back Shot that it's completely unfriendly to Counter.
Sky Jump and to a lesser extent Jump Glide would provide defense boosts. Jumping at least is something Pit was doing in the original Kid Icarus on a regular basis.
Guardian Orbitars is indeed able to snipe with its Rapids, granting it a longer range option. That's an advantage over Ancient Staff, which is more focused on mid-range capability.
What is your take on the Miracle system? I can use Auto-Translate on your answer, by the way. Me, I made a blog post recently that is titled as follows: "The Fridge Brilliance of the Power Grid" I don't know if machine translate will provide accurate translation for that (and remember that Miracles are called Powers here on the east side of the Pacific Ocean), but I do provide my input about a key aspect of the Miracle system there. Addendum: I can't provide the URL here because KZbin defaults to disallowing links. If you want to find it, it's on Wordpress under the user name "warriorsuprising" where I posted it.