# Hemoglobin Hospital

> Action puzzle game about bonding oxygen to red blood cells. (iPhone/iPad app by Masakazu Yonehara.)

- Source: https://appshunter.io/ios/app/hemoglobin-hospital/id539313409 (this page in markdown: same URL + `.md`)
- Developer: [Masakazu Yonehara](https://appshunter.io/developer/1339210794)
- Category: Games, Action, Casual
- Price: Free
- Rating: 3.80/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 13 MB
- Languages: American English, Japanese
- Released: 2012-07-10
- Data updated: 2026-07-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hemoglobin-hospital/id539313409/reviews.md

## What is Hemoglobin Hospital?

Introducing a new blood-based action puzzle experience!
As red blood cells flow through the bloodstream, it's your job to bond oxygen molecules to them!
*Note: Actual red blood cells and hemoglobin differ greatly in appearance and form from those seen in the game.

=== How to play ===
(1)Rules
- As red blood cells flow through the bloodstream, drag the oxygen panels on the left and right side of the screen to make each cell have a complete 4 oxygen units.
- Once a cell has 4 oxygen molecules attached, it's a “perfect red blood cell”
- As you create more perfect red blood cells, a chain will build up, boosting your score.
- If an incomplete blood cell passes through, your O2 gauge will decrease. Once empty, it's game over.

(2) O2 bombs
- When the O2 button on the upper right of the screen starts to blink, you can tap it to launch an oxygen bomb. This bomb replenishes all red blood cells onscreen and makes them perfect.
- Occasionally, you'll see an oxygen capsule floating through. Tap it to partially replenish your O2 bomb gauge. Collect more of these to fill it back up.

## Key features

- Bond oxygen to red blood cells
- Create perfect red blood cells
- Build score chains
- Manage O2 gauge
- Use O2 bombs
- Collect oxygen capsules

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/hemoglobin-hospital/id539313409/reviews.md

### 5/5 — Frantic fun

*2012-07-26*

Fast fingers and quick thinking required.
The oxygen buttons are a little too close to each other though, imo.

## Frequently asked questions about Hemoglobin Hospital

### What is the gameplay in Hemoglobin Hospital?

Hemoglobin Hospital is an action puzzle game where players drag oxygen panels to attach oxygen molecules to red blood cells. The goal is to create 'perfect red blood cells' with four oxygen units each to build score chains.

### How do I avoid losing in Hemoglobin Hospital?

You must ensure that incomplete blood cells do not pass through the screen, as this will decrease your O2 gauge. If the O2 gauge empties, the game is over.

### Can I use special abilities in Hemoglobin Hospital?

Yes, when the O2 button blinks, you can tap it to launch an oxygen bomb, which replenishes all red blood cells on screen and makes them perfect.

### How can I refill my O2 bomb gauge in Hemoglobin Hospital?

Occasionally, oxygen capsules will float through the game. Tapping these will partially replenish your O2 bomb gauge. Collecting more of these will fill it back up.

### What devices does Hemoglobin Hospital support?

Hemoglobin Hospital is available on iPhone, iPad, and iPod devices.

### What is the age rating for Hemoglobin Hospital?

The game has an age rating of 4+, making it suitable for younger players.

### When was Hemoglobin Hospital last updated?

The latest version of Hemoglobin Hospital was released on November 7, 2018.

### Does Hemoglobin Hospital have ads?

No, Hemoglobin Hospital does not contain advertisements.

## Version history (last 5 releases)

### 1.3.1 — 2026-07-04

Fixed bugs.

### 1.3.0 — 2026-06-12

Update SDKs.

### 1.2.0 — 2018-11-07

- Fixed for iOS12.

### 1.1.2 — 2014-06-02

- Fixed bugs.

### 1.1.1 — 2014-01-22

- Fixed for tweet bug.

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## More apps by Masakazu Yonehara

- [Salmon Roe](https://appshunter.io/ios/app/salmon-roe/id436078937)
- [Odd Cat Out](https://appshunter.io/ios/app/odd-cat-out/id441062266)
- [Pan Touch](https://appshunter.io/ios/app/pan-touch/id451106542)
- [Mysterious Creatures](https://appshunter.io/ios/app/mysterious-creatures/id457832536)
- [Planet Bom Bom](https://appshunter.io/ios/app/planet-bom-bom/id470500682)
- [Hurdle Hell](https://appshunter.io/ios/app/hurdle-hell/id484819577)

All apps by Masakazu Yonehara: https://appshunter.io/developer/1339210794

## Related topics

[hemoglobin hospital](https://appshunter.io/ios/topics/hemoglobin-hospital) · [hemoglobin](https://appshunter.io/ios/topics/hemoglobin)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-18.*