There’s something endlessly delightful about Honkai: Star Rail that keeps me hooked even in 2026—beyond the flashy ultimates and meticulously layered team compositions, it’s those quiet, tucked-away secrets that still make my heart race. When I first set foot in Penacony, the Planet of Festivities, the sheer whimsy of it all hit me like a beautifully composed chord. The breakable objects here aren’t your standard crates or ancient vases; they’re fragile glass bottles and, cutest of all, balloon caricatures of the ever-stoic Mr. Stone. This isn’t just set dressing. Popping those bubbly doppelgängers felt oddly satisfying, but the real prize came later—a handful of hidden achievements that playfully wink at HoYoverse’s storied legacy.

Scattered across Penacony are four special Mr. Stone balloons, each one a love letter to a different HoYoverse title, and honestly? Finding them turned me into a giddy explorer all over again. Each balloon you burst grants a hidden achievement along with a cool 5 Stellar Jades. That’s 20 Jades total—a modest haul, sure, but the bragging rights? Worth their weight in gold. The achievements are brilliantly named: FlyMe2theBalloon, Balloon Gakuen 2, Balloon Impact 3rd, and Penacony: Balloon Rail. Let me guide you through each one, seasoned Trailblazer to seasoned Trailblazer, cause I’ve been down these whimsical roads and I’d hate for you to miss a single pop.

FlyMe2theBalloon – A Golden Hour Serenade

This was the first one I stumbled upon, and let me tell you, the “aha!” moment gave me goosebumps. To snag FlyMe2theBalloon, teleport over to the Dreammerse Shopping Street Space Anchor in the Golden Hour. Now, don’t go window-shopping for souvenirs just yet—turn west and make your way to the railing overlooking the dreamy, neon-drenched skyline. You’ll need to squint a bit, mate, cause the cheeky thing is floating at a distance, an orange Mr. Stone balloon drifting lazily like it owns the place. A single ranged attack from any character will do the trick; watch it burst into confetti and voilà, the achievement pops right alongside it. The reference to HoYoverse’s cult classic space shooter FlyMe2theMoon is so on the nose I can’t help but grin. Five Stellar Jades, one nostalgia trip. Easy peasy.

Balloon Gakuen 2 – Campus Vibes at the Dream’s Edge

Next up is Balloon Gakuen 2, and this one channeled my inner high-school protagonist. You’ll find it in the Dream’s Edge, a locale that already feels like a surreal slice of academia gone otherworldly. If you’ve unlocked the gate, use The Family’s Construction Authority Space Anchor; it’s the most straightforward shot. But if that gate’s still mocking you with a lock symbol, take the scenic detour from either the Front Observation Deck Space Anchor or the Shape of Roast Stagnant Shadow. Once you’re in, keep your eyes peeled for a special Mr. Stone balloon lurking near a hidden corner, practically begging to be burst.

The name is a playful twist on Houkai Gakuen 2 (Guns GirlZ), the game that laid the groundwork for HoYoverse’s universe. When I destroyed it, I half-expected a tiny chibi Kiana to celebrate with me. Instead, I got 5 Jades and a solid hit of nostalgia. Worth it.

Balloon Impact 3rd – A 3D Labyrinth Worth the Bubble Trouble

Let me be real with you: Balloon Impact 3rd gave me a proper workout. This one’s tucked inside A Child’s Dream, a whimsical yet disorienting realm that plays tricks on your sense of direction. Start by teleporting to the Eddying Dreamscape Space Anchor, then march north into the 3D room. Now, follow these steps like your Stellar Jade supply depends on it (because it kind of does):

• Turn left down the stairs and grab the Bubble Charge from the fountain.

• Activate the nearest Bubble Bridge.

• Cross it, then turn right to activate another Bubble Bridge.

• Walk straight, turn right again, and cross the third Bubble Bridge.

• Follow the path to another Bubble Charge fountain. Near the next Bubble Bridge, you’ll spot the special Mr. Stone balloon floating serenely.

It’s a whole process, I won’t lie. By the time I reached it, I felt like I’d navigated a fever dream designed by Bronya herself. The achievement name is a clear homage to Honkai Impact 3rd, the game that put HoYoverse on the map for emotionally devastating storytelling. Bursting that balloon felt like a tiny tribute. And hey, those 5 Jades? They’re the cherry on top.

Penacony: Balloon Rail – The Reverie’s Broken Secret

Last but not least, we have Penacony: Balloon Rail, a name that basically smirks at you. Head to The Reverie (Dreamscape). You can use the VIP Lounge Corridor Space Anchor or, if you prefer sneaky back routes, the Shape of Nectar Stagnant Shadow. Once there, keep an eye out for a secluded corner hidden behind some crumbled walls. It’s the kind of spot you’d miss if you were rushing through dialogue—but that’s not our style, right? The special Mr. Stone balloon is loitering there like a forgotten party guest.

Popping it scores you the final 5 Stellar Jades and the achievement. The meta-humor here is impeccable; it’s a self-aware nod to Honkai: Star Rail itself, embedded in the very world it inhabits. Very “balloon within a balloon” energy, and I’m all for it.

Wrapping It Up – Why These Tiny Hunts Matter

In a game as vast as Honkai: Star Rail, it’s these blink-and-you’ll-miss-it treasures that keep the magic alive. As of 2026, Penacony has evolved with new events and tweaks, but these special Mr. Stone balloons remain untouched—a quiet constant for those of us who love Easter eggs. All four achievements combined reward you with 20 Stellar Jades, which may not seem like much, but the real prize is the street cred and the warm fuzzies you get from honoring HoYoverse’s journey.

So grab your best AoE attacker, cue up some lo-fi beats, and go balloon hunting. It’s free serotonin, fellow Trailblazer, and a quick, delightful detour from the grind. Trust me, when that achievement icon flashes on your screen, you’ll feel like you’ve just uncorked a bottle of your favorite celebratory champagne. Cheers!