Developer: Cyoltose (2)
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Touhou Iyuushou ~ What the Bullet Hell?! Demo
Touhou Iyuushou ~ What the Bullet Hell?!is a Touhou Project fan-made bullet hell game that pays homage to Impossible Spell Card. It features a collection of short, self-contained danmaku stages—each one a standalone, visually striking bullet pattern designed to challenge your reflexes and puzzle-solving skills.

"Iyuushou" means "Testimony of Strange Encounters".

You play as Marisa Kirisame, reimagined as a danmaku researcher, investigating mysterious spell cards appearing across Gensokyo. Armed with a variety of tools, you'll analyze, survive, and outwit increasingly bizarre bullet patterns!

🧪 Core Features

🔸 Danmaku Challenge Collection
A large set of short, carefully crafted stages. Each stage is an individual bullet hell "exhibit", offering unique gameplay, aesthetics, and logic to decipher.

The demo version includes 3 chapters and 22 stages.

🔸 Strategic Item System
Bring helpful items into battle to turn the tide—but be warned, using them affects your final reward! Go in raw for greater glory.

🔸 Multiple Difficulty Levels & Challenge Styles
Tackle each stage at Easy / Normal / Hard / Lunatic difficulty. Want to prove your skill? Try clearing stages without items for maximum bragging rights!

🔸 Stamp Collection System
Clearing a stage earns you collectible stamps. Higher difficulties award more stamps, and clearing a stage without items earns you a rare, shining Gold Stamp!

🔸 Scene EX & Scene PH: Long-form challenges included!

Each game day features a "Scene EX", where all bosses of that day appear in succession, taking turns unleashing their bullet patterns. This provides players who enjoy longer gameplay sessions with a more complete and intense danmaku rhythm experience.

Ultimately, a super-difficult "Scene PH (Phantasm)" will be introduced—a boss rush-style ultimate bullet relay, challenging your endurance and skills in an STG marathon!

🔸 A Tribute to Danmaku as an Artform
Each stage is a creative, standalone danmaku work. Whether you're a Touhou veteran, a bullet hell enthusiast, or a newcomer seeking a stylish challenge, this is your invitation to an artistic barrage of patterns and puzzles.

🎯 Game Identity & Style

A Touhou Project fan game made with love for danmaku and its creative potential

Inspired by Impossible Spell Card, but expands with more solutions and player freedom

Light on story, heavy on gameplay—perfect for pick-up-and-play or long challenge runs

Catering to both quick-stage runs and marathon STG experiences

Functions both as a "danmaku art gallery" and a technical proving ground for STG fans

Note: Progress from the demo will carry over to the full version, but the leaderboard is separate.
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#1. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#2. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#3. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#4. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#5. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#6. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#7. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#8. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose
#9. Touhou Iyuushou ~ What the Bullet Hell?! Demo (Steam) By: Cyoltose

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«Touhou Iyuushou ~ What the Bullet Hell?! Demo» is a Action & Adventure game for Steam, developed by «Cyoltose». It was first released on and last updated on . This game is currently free. This game has not yet received any ratings or reviews on AppAgg. Supported features include: Action, Adjustable Difficulty, Casual, Custom Volume Controls, Game demo, Indie, Keyboard Only Option, Partial Controller Support, Save Anytime, Single-player, Steam Cloud, Steam Leaderboards, Stereo Sound, Strategy. Available languages: English, Japanese, Simplified Chinese, Traditional Chinese. AppAgg continuously tracks the price history, ratings, and user feedback for «Touhou Iyuushou ~ What the Bullet Hell?! Demo». Subscribe to this game or follow its RSS feed to get notified about future discounts or updates.
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