MISSION REPORT: POKEMON ISLES OF MARIYAMA (WINGS OF CHAOS)
Explorer: DexHunter Ace — LVL. 100 Completionist
Region Codename: Isles of Mariyama (IoM) / Wings of Chaos
Base Sector: Emerald Infrastructure (pokeemerald-expansion)
Build: Alpha 2
Status: INCOMPLETE — ONE ISLAND ACCESSIBLE OF THREE PROMISED
ARRIVAL — FIRST IMPRESSIONS
Timestamp: Hour 0:00 — Touchdown on Island One
Okay. OKAY. Deep breath. I landed in Mariyama with my spreadsheet prepped, my completion tracker at 0.00%, and my heart rate already elevated because the briefing said Gen 8 Pokédex depth via pokeemerald-expansion. That's potentially 800+ slots. My hands were shaking. My stylus was ready.
And then reality hit me like a Brick Break to the face.
This is an Alpha 2 build. One island. ONE. Of three promised. The Pokédex is a skeleton — a beautiful, tantalizing skeleton with the outline of something enormous, but right now? I'm staring at rows and rows of empty slots with no way to fill them. You want to know what that does to someone like me? It's like handing a starving Snorlax a single Berry and saying "the buffet opens next year, maybe."
THE LANDSCAPE
Timestamp: Hour 1:30 — Exploring Island One interior routes
Credit where it's due: the first island has personality. The visual landscape is lush — tropical, detailed tilework, custom mapping that doesn't feel like a cookie-cutter Hoenn reskin. The region has a distinct atmosphere. NPCs aren't just standing in grass waiting to be talked to; there's a Day/Night cycle that gates certain encounters and quest NPCs. That's a phenomenon I respect deeply from a completionist standpoint, because it means I had to patrol routes at multiple times of day to catalog everything.
But here's the thing — the region is small. Claustrophobically small for someone who measures satisfaction in percentage points. I mapped every accessible tile in under 6 hours. Every hidden corner. Every interactable object. When your entire explorable world fits on a single island, the ceiling comes fast.
POKÉDEX STATUS — THE CRITICAL REPORT
Timestamp: Hour 4:15 — Dex audit initiated
This is where my soul started hurting.
The expansion engine technically supports up to Gen 8 species. But available wild encounters on Island One? A fraction. A cruel, teasing fraction. I documented roughly 60-70 catchable species across all routes, surf spots, and fishing encounters. No evolutionary stones were gated behind impossible tasks — they're purchasable or findable, which is fine — but the real problem is that most evolution lines are simply incomplete because the content isn't here yet.
DEX HUNTER WARNING: Living Dex is NOT possible in this build. Not even close. Do NOT enter this region expecting to fill anything beyond maybe 8-12% of the theoretical full dex. I repeat: this is a skeleton. A gorgeous, well-organized skeleton, but a skeleton.
Trade evolutions? I couldn't confirm whether a Link Cable item is available in a Department Store — because there's no full Department Store yet. There's a mart. It sells basics. The infrastructure for trade-evo items might exist in the engine, but I found zero evidence of implementation. That's not a failing for an alpha, but it's a gaping unknown for my tracking sheet.
QoL PHENOMENA — WHAT'S WORKING
Alright, let me stop spiraling and acknowledge what the local technology gets right, because some of these decisions are genuinely excellent:
- HMs replaced with Key Items. This is non-negotiable for me in any modern region. Mariyama locks Surf, Cut, Rock Smash, etc. behind progression-gated Key Items. No wasting moveslots. No HM slaves. My party stays lean and mean. Huge, HUGE quality of life win.
- Quest System (Unbound-style). There's a quest menu. It tracks objectives. It tells you what's active, what's done, what's pending. For a completionist, this is oxygen. I can see my progress numerically. I need that. I need that.
- Day/Night gating. Some encounters and NPCs shift based on time. This adds legitimate replay value to existing routes — I ran Route 2 (or whatever the local designation is) four separate times across different time windows and found different spawns each cycle.
- Boss Battles. Overworld Pokémon that are beefed up, acting as progression gates. They're not just "strong wild encounters" — they hit like mini-bosses. Interesting phenomenon. Forces resource management.
Best QoL note: The HM Key Item system alone elevates this region above dozens of hacks I've explored. If a full Repel toggle or Infinite Repel system gets patched in for the full release, this could compete with the big names on convenience alone.
THREAT LEVEL — COMBAT ASSESSMENT
Timestamp: Hour 6:00 — Gym Challenge sequence
The briefing said "not easy, not pushovers." That's... accurate, with caveats. Hostile trainers on routes are competent. They carry coverage moves. The first Gym Leader (the only one fully accessible) uses a curated team with held items and actual strategy — not the "Lv.12 Geodude with Tackle" energy you get from lazy hacks.
But because the alpha truncates so early, I can't assess difficulty scaling. The early-game curve is solid — I whited out once against a Boss Battle because I underestimated its stat boosts and went in without healing items. Resource management matters here. Potions aren't infinite. Money is tight.
For a completionist, though, difficulty is secondary. I don't care how hard the fights are if there's nothing left to catch afterward. And in this build? The catching runs dry fast.
SHINY HUNTING VIABILITY
Timestamp: Hour 8:00 — Shiny protocol test
I spent two hours testing shiny odds and methods. The expansion engine should support modern shiny rates (1/4096 base, with potential charm modification). I did NOT encounter a shiny in my testing window, which is statistically expected. No DexNav system is present — Shiny hunting method: DexNav chaining does NOT work here because DexNav isn't implemented. No chain fishing confirmation either.
Without dedicated shiny hunting methods, this region is a raw odds grind for shiny hunters. Possible, but painful. And with the limited dex pool, there's barely anything worth hunting for yet.
SHINY HUNTER ADVISORY: Wait for a later build. There's no infrastructure here to support efficient shiny hunting. You'll burn hours for a fraction of the payoff.
POST-GAME — DOES IT EXIST?
No. There is no post-game. The alpha ends after the first island's story arc, which is... brief. There's no Battle Frontier. No rematch system. No legendary hunts. No mythical events. The story just... stops. With a "to be continued" energy that left me staring at my save file like a Houndoom staring at a locked door.
For someone who lives for post-game — who measures a region's worth by what happens AFTER the credits — this is the biggest void. I can't rate what doesn't exist.
ANOMALY LOG
I encountered a few anomalies during my expedition:
- Minor text anomaly: A few NPC dialogue boxes reference items or locations that don't appear to exist yet in the build. Placeholder text, likely. Not game-breaking.
- Quest tracker inconsistency: One quest marked as "available" but the trigger NPC never appeared during any time-of-day window I tested. Possible Day/Night bug, or content not yet implemented.
- No confirmed softlocks. I deliberately tried to break progression sequences (entering areas out of order, using Key Items in weird spots) and the region held together. Solid foundational engineering.
FINAL FIELD ASSESSMENT
Total expedition time: ~12 hours (including shiny testing, route re-runs, and exhaustive NPC cataloging)
Here's where I have to be honest with you, and it physically pains me.
Isles of Mariyama has exceptional bones. The engine is modern. The QoL decisions are intelligent — HM items, quest tracking, time-gated content. The first island has genuine character. The creator clearly understands what makes a region feel alive.
But this is an Alpha 2 of a one-island demo in what's supposed to be a three-island adventure. My completion tracker topped out at roughly 31.7% of available content (quests, catches, items on Island One alone), and that ceiling exists because the content itself isn't built yet — not because I couldn't find it.
Living Dex? Impossible. Full Pokédex? Not even theoretically achievable. Post-game? Nonexistent. Shiny infrastructure? Absent. For a completionist, this region is a promissory note — beautifully written, but uncashable right now.
I want to come back. I genuinely do. When Islands Two and Three open up, when the full dex is populated, when trade evolution items hit the shelves and a proper shiny method gets wired in — this could be something special. But I can't rate a promise. I rate what's on the ground.
Missable event warning! There is at least one time-gated quest NPC who only appears during specific Day/Night windows. Save before entering the cave on the eastern route — one of the Boss Battles sits right inside and you WILL get ambushed if you're not prepared. Don't be me at Hour 3, frantically mashing B with a half-dead team.
I'll be watching this one. My spreadsheet has a placeholder column labeled "Mariyama — REVISIT." The moment a substantial update drops, I'm boots on the ground again.
Current Dex Completion: ~12% of estimated full regional dex (Alpha content only)
Quest Completion: 31.7% of available Alpha quests
100% completion estimate for full release: Unknown — insufficient data. Projecting 40-60 hours IF all three islands deliver.
— DexHunter Ace, signing off. Dex incomplete. Sleep also incomplete. Standard operations.





