Adding the Gundam Aerial Mirasoul Flight Unit to your collection is basically mandatory if you want your HG Aerial to look its best. It's one of those releases that feels like the missing piece of a puzzle. If you've been following The Witch from Mercury, you know exactly when this thing shows up—it's that high-stakes moment where Suletta needs a bit more "oomph" to handle the chaos. But as a kit, it's an interesting beast. It isn't a full mobile suit, obviously, but it's more than just a simple backpack accessory.
Let's be real for a second: Bandai has a bit of a habit of selling us the "complete" version of a kit in pieces. When the HG Aerial first dropped, it was an absolute banger of a kit, but everyone noticed the lack of certain accessories. Then comes this flight unit, and suddenly, the Aerial looks twice as imposing. It's a bit of a "Bandai tax," sure, but once you get it on the shelf, it's hard to stay annoyed.
What's Actually in the Box?
When you crack open the box for the Gundam Aerial Mirasoul Flight Unit, don't expect a massive afternoon-long project. It's a relatively small box, consistent with most High Grade accessory sets. You get a few runners, a small sheet of stickers, and the instructions.
The main event is the flight unit itself, which is comprised of two large, chunky thruster pods connected by a central mounting block. But the secret MVP of this kit isn't even the flight pack—it's the hands. This set includes a pair of open, expressive palms for the Gundam Aerial. If you've ever tried to pose your Aerial in that iconic "reaching out" stance from the anime's opening, you know the closed fists that come with the base kit just don't cut it. These hands alone make the purchase worth it for a lot of builders.
The plastic quality is exactly what you'd expect from the WFM line—solid, easy to nip off the runners, and featuring that slightly matte finish that looks great even without topcoat. The color scheme is a bit darker than the Aerial's primary blue, which gives it a nice mechanical contrast. It makes the Gundam look more like a piece of experimental military hardware and less like a "hero" robot, which is a vibe I personally dig.
The Building Experience
Building the Gundam Aerial Mirasoul Flight Unit is a breezy affair. You can probably knock it out in about 20 to 30 minutes if you're taking your time and cleaning up the nubs properly. The construction is clever, though. The thruster pods have these internal mechanical arms that allow them to extend and swivel. It's not just a static hunk of plastic hanging off the back.
One thing I really liked was how the beam saber storage is handled. The Aerial's original beam saber hilts actually move from the backpack of the Gundam onto the Mirasoul unit. It feels like a genuine upgrade in-universe. You also get some nice internal detail inside the thruster bells. If you're a fan of painting small details, there's plenty of room here to add some metallic silver or burnt iron to make those engines pop.
There are stickers, because of course there are. Most of them are for the green sensor bits. They're typical HG foil stickers—a bit fiddly, but they do the job. If you have a steady hand, a drop of fluorescent green paint would look way better, but the stickers are fine for a straight-out-of-the-box build.
How It Changes the Silhouette
Once you snap the Gundam Aerial Mirasoul Flight Unit onto the back of the HG Aerial, the whole vibe changes. The Aerial is already a pretty "thick" design compared to something like the Gundam Wing or the Barbatos, but the flight unit adds a lot of horizontal width. It makes the suit look much more aggressive.
The way the flight unit interacts with the "Gund-Bits" (the shield pieces) is also pretty cool. While the Mirasoul unit doesn't have specific docking points for the bits like the main body does, the extra bulk provides a better backdrop for a display stand. If you have the Aerial on an Action Base with the bits floating around it, the Mirasoul pack fills in that empty space behind the torso, making the whole display feel "fuller."
One minor gripe people have is the weight. Because the flight pack is relatively large, it does shift the center of gravity backward. If you're displaying the Aerial standing on its feet, you'll need to lean it forward just a hair to keep it from toppling over. Honestly, though, this kit is meant to be in the air. Grab a simple Action Base 5, get it off the ground, and the weight issue completely disappears.
The "Expression Hands" Factor
I cannot stress enough how much better the Aerial looks with those open hands. It's a small thing, but in the world of Gunpla, hands are everything for posing. The Gundam Aerial Mirasoul Flight Unit gives you those "reaching" hands that allow for much more emotive poses.
Whether you're posing Suletta's suit in a defensive stance or having it reach out towards the Dilanza or Pharact, the open palms add a level of "human" movement that the standard kit lacks. It's almost a shame they weren't included with the main kit, but as an incentive to pick up the flight pack, it definitely works.
Is It Worth the Extra Cash?
If you already own the HG Aerial, the Gundam Aerial Mirasoul Flight Unit is an easy "yes." It's usually priced pretty affordably, often around the cost of a few cups of coffee. The value it adds to the display is way higher than the price tag suggests.
However, if you're someone who prefers the "Full Mechanics" 1/100 scale or you're waiting for a Master Grade, you might be tempted to skip this. But for the 1/144 scale collectors, it's a staple. It also has some compatibility with other kits. Since it uses the standard double-hole backpack connection that's become common in modern HG kits, you can actually slap this flight pack onto other suits if you want to do some kitbashing. Imagine a GM or a Gundam Lfrith with these massive boosters—it looks surprisingly good.
Final Thoughts on the Display
Displaying the Gundam Aerial Mirasoul Flight Unit really brings home the "high-tech" feel of the Ad Stella timeline. The way the pods can swing out and away from the body gives you a lot of options for "action" photography. You can have them tucked in for a high-speed cruise look, or splayed out to suggest the suit is braking or maneuvering mid-air.
The mechanical arms that hold the pods are surprisingly sturdy. I was worried they'd be floppy, but they hold their position well. You can even store the beam saber hilts inside the hidden compartments in the pods, which is a nice touch for those who like "perfect transformation" style gimmicks.
At the end of the day, this isn't just a piece of plastic you're adding to a shelf. It's the completion of a vision. The Aerial was designed with this unit in mind, and having it all together just feels right. It turns a great kit into an iconic one. So, if you see one in stock at your local hobby shop or online, don't overthink it. Just grab it. Your Aerial will thank you, and your shelf will look a whole lot cooler for it.